CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'non-interactive',cRay: '9134a40cbd5fa042',cH: 'XLrFlbMjsbAGA3TgLceFbYT496L73Xk0T__0Wq1uyw0-1739783390-1.2.1.1-li30IZboEBtMNGm1Czl21xBDbcERSe8bwimbMTzOJMFwqvYlQtM9KIPFH2Wy6eW2',cUPMDTk: "\/abstracts\/search?q=Benny%20Benyamin%20Nasution&__cf_chl_tk=kt6.HLfJqYyq1woLDquWlFosd8JKW.7d.P8y_91wEHY-1739783390-1.0.1.1-A2fWISgbdXieRmiA2sIg61dwaRVs6jO21mnDxU0IdvE",cFPWv: 'b',cITimeS: '1739783390',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=Benny%20Benyamin%20Nasution&__cf_chl_f_tk=kt6.HLfJqYyq1woLDquWlFosd8JKW.7d.P8y_91wEHY-1739783390-1.0.1.1-A2fWISgbdXieRmiA2sIg61dwaRVs6jO21mnDxU0IdvE",md: "5jg7FwFmrQxmo.5imM2y7tQB0e9Q2AqcTZixNa10hQQ-1739783390-1.2.1.1-tQy.IaRQOQmI_xzHBmzkBy.3BlPz4wPniwpFr2J5CaXVTRkcTt9G.qY7OEVMjhDutS4IfFln88wnIUgKhQtK9UXWCltfpXkbQHPEWC5ZgEMGotq5A0pJz.MeFWM4MP5OzTrLGW3gQc2Xe69XCdbD7jG5Q7mTjeKLNnmeXyD9kznZ85l5IHNJe0Nk1_c4LUUNbbcgGiVZY6uMjRJwIXF323ziZCNXcQb3jBKZgsjwsJ4cTK74EqZstVZTQ07sytofvNEi9HW7UnzLM7dtnPK7Ae_t.2Xf4bOoflMFmlLbBD1TlBYJ_TSTaYf89LB35kIxwjg9EXjn9UAPDwk.7PDkj1CoqrYGIEHyM98QO9dqqNexogc2zQkjXyrhjxCaer1GUcw5zvROxqVPqAatjFGnFbyHliEhQQDFJeKLdFZPKNknWY94lvvmcr3I8FD6l8L32TOI0BnqlAVxpXirA8p72o1jiTd2fJqyKzVcqNNOr6lMv0OamhzZvZnQCrjmNRnnRuYeY61jJliObUMP7TJNRjCvmJyFUkRhrc4Ws4ND6QPAjc7rY5ax4zqksWjhMp.T_x5S2YTJF9dj5T8GL0qXp9oLlPtpYrgVSihORiCSjLS5Gkzh9nBxNb9qA0fEMY.DoMIRkbe_lQmQ0vaGRgSgDdX_4F4r0ef_rWG5y0i.zcwxXL4_Xm5DVP3g1ZXPJ5jhWDzY3zns8oCHW5yf1eKpLtr3q26dami6Da1u4iiD1vel8c5McmC.aNVSUcNZvnK5T8TsZMvpPD0DcmRm9OLomO3MLID0K_T.1sXhKSyX70I8lL6qQTBgwHTBAvPhp7FLZ9LEpdZJQPjzlEg0ukkV_x5aATcFpU7xgJfTabEU2XoBL9JH_IEPND2O3qd0hDzotxW3R4CqgQJSrPJ3DqCNJDMf_9hGS4Lbs7m7kyU7saudIUKwersvR.9LQ4WrUbikBA84nVn1QPYhFjrPz62Don9w.JzLSDa95maFYUZoKOhjqupWyoQGHgqhGjVIRtX6.Kamu39hdumVP2JZbp9w59LMcBUR7CfwzOnjkiwHRXlZKIym01jif8yS8fA6NyR0rNldpd575s1pL72frqFJiW3wCLxHpMO.RV7VOpk3y0n618LGxwDxtOCMlT3.d3tDt9DUwkeYwMqYLDDdarpN9KrrZbHZqDvpnAoJjIe0Gg.fQyCQBT3XH8TUxa5a5XuedowBFJnvdGnI5Ba_vYyZqvCPB0axNiCb9rJIVO.4kYG4cTDP0nvE0XrV.d8L99V.1tuabV0DVMahb1QApFOdhD4G5AI6TVbWwrjw2zL9n1YAUMUNzQG5pzuBv92gqilzg9mrOaDT4secynCERBtsW1eiCVhGQ3DMe4f1y5EEnjiyly3.E5R9WKjL_Xa8KU2K9XyQ2Z1rVF6pY3soeDXYae3udsXLiIPBCgfArJzUvip1TwD5wW7LMwMjyeXLTbuWS10bEiCUN3b8ayW4Nk6EOcTVDaPsv0nEo9stUfI9hezO3aP8.0CT1Vb8aJpzfZHcala3.mL9OR8rgU9QoSfhQlXv3DGeuwPfqR3YSzZDBVJlDEY99YIE0hrhH0bHf5O2eHBfvhd3ATytT6Ux14eF0FuTxm5Jhp2Ws8k50anEYSwFcN07EVkQKECB9vrZ9lbcJ8on6cSTvXir5J9hxdz56txPxDvHjekfgSialtYr6AK325lHWN64vWsYdcFFsLT7mRWBGcNiEa1Y.wvaVEmnuPkOwgI76EqIYHjEmj3sFRjjT9iH1Jv8x.z3iJHsnUvMNLFYso82RyOlg2BFFGgl60i.JmuJI60qmuywwCRJOeSdBgpN.wnWVCbTspkOF1oNQh5rIaLhO2Wk4BBtT.EF7Gwa3mwtrtL6Uks9XJ4RDZvxXkdMjuzFDv1Hag1u4VLw87FeebkvRHYmVpORdrIKDuu_Nu4Yzx4znU6thhJarMwI_rfeOSNaDJgr5geHmtQg",mdrd: "r0md9RBd3lxW3tXG8bsJsiUf9vpB5IhZcyQATFrPrtE-1739783390-1.2.1.1-0QBwF5iGeLEoznEljCOJlyjDWyUghIkMJ5QT.5OSKbuzqwfbKfT22L_deMXarOuiecFH9YUwYGvpb8a41VHzahXFaotF_ck.v2R0ZAy1rJ8bSouSoY8qdnWYRNbO4tNXOqPV5YCjVrpmpvmNXkPPbM.iL9zTfySbWxFopV7MEqGYDqg7d.v1VzmXLuEmyLel.rSrgVreHc3G359EtdD4yDy1R6lh7RIf7hUxGttOZL6OP5Zl_7rn.7lvClmbkZmdntXiJo9.XBHxNocyrCQWdWh_845OUKJ6iDPZjfkQYnifo21n6YSdfbz8JufNmopsvCjKXG5d3Uni4OTCprXfGNCX4MYVK1u4ZGDp3OSwIAP28f4bYEZrJJKOLmds75IbQnXr4g4oEsLtWWjSp4N5BoFw5K7IY32mhBLMTwoyPc1Pz_U5uPk.ckgQbO_VPDrAKp34cKIKzdmgOAx1Uirq9SaiCSTp1CuAnXIrtMeROX5z.DyPpBwoGuwC.wlQYW5Y9qt8LjEfb6JlNtnUENkVzp37Ue724tJtEX8Aa3hdC.LO6WhhwpYa67DMex4PVTI6TUsMR4cr_SNYPF4mNCMX1LuB7FRV7IExPKUie5OECpp3rHup3CKqUZY2lqBb39Bu4brtGXXiT5pK8V2YVH9mWY2oM0BP7uCJJCcJnP.fwBQl.VTZvrwx1fhSu3QF2RM4cr6uLNrEyFfIImaEpFpJLipuMtf8NyvBIKwhY7hFBrxF68A22m3PqXL6Dofrb5w7gX9VD2cSbIILNZ3C0rMKHv8heEoitkYU2z.bJhvwgeySLzIUbEquldx_9qNZi83Z7gflSqcYC7_pMfuzmtE3_YK6vD_cFF7.rNOvcItZ9I9BbX1JylorDwPMtDx3nf0SqVdrA0CHp1aOEcBA.TldjrxcZIYgNofMXzh_tDEgeh8a0i.jNOn2kmGa8mw2WJrOGxd2tH3tzNsq8kXRqZSucEyKVDjiKjA47eANz9tgrJAT1kgMvKQA0pSbBxF6tKLOr4JFax20VtckP1TKOhecT3tKxe0eDZaBecCuJ0uu5DbVAJQU96HsYJgKvx0K1k0TmcMIuPebT1OQ_uu79Z31yCU77EGe4FVNoYCVt.77d2wMpbtQ9.0lsM3hi0a0inq9lpvo17.qY_56uLhpOQ1qpYW2210CJmuBzZXhhlw2hsffR_xPgboCVuo72x5HoIDJxOl80KX.ykaWdTSBlLM0wJkIVTx5gkOJxNmNIqODBRdrp_aqNO9rVpY9YhEi2D.yrDDZN27rAYtb.30nBxCgcNNnCweVCVbeW5NBg1jTK1ySpeM6MapkKZtq8Xh2gy0UQjQ_rurwWRVy5V4YSHCqZw90rVQyvR6T_E8s14rnp.8shnO_mPRquRbYuuclBr4H4WN8VkJtsvRs5MyipzjP9jE2ETFizwOSfk6RxP6LtxquyU3O0QNTAS3krtE2jDd6A.qHZ4xQFYLZYDGk3G2BoCxOmcbfGuXwPRt87_6wyqx1RiqErqT_2eiZWfut6BV3rxpxcCkOkov1FYNTK7ObuhVYmMLbF1OfK9Igz8KZpQa9EFJzaTFZDWXLjVmTc9gxZwDz1bxHWqy9hS_YNGUgZcYoZBPMCOSPkfs9WqbgsTzJukytrr8HNtTmFBn6tXz2pgPE6bxI1xg_pr4.ik5sD6bXtxopPLx1zef87Nhcj6MI1jof42xHn_oNKzSS41REYSwFAXDbDGcsqxI2sRzFkNSVU.i7OE2PLU0kCavAbxKeA1HF7vDbBolrl2DFq_2iBs_wYlYHSluUsG2cTOq.rGUojSIO274Sr2ucLT6JKccwyYvx5MsBC3plp7htsOYL3syryapZ2OBzw4cuefvLubb.6VYGQnOBPwpUy38TEoxjb.WjrUDlXq2hwDGzBRuAGNcoSAjNxbLcqYe1JNdqpoD28jLtxtRheOSq5uPvrtKFHAL9j0YtseiWqcMEd28Ta64FPcwkdpmFxebNeZpzAg"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9134a40cbd5fa042';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=Benny%20Benyamin%20Nasution&__cf_chl_rt_tk=kt6.HLfJqYyq1woLDquWlFosd8JKW.7d.P8y_91wEHY-1739783390-1.0.1.1-A2fWISgbdXieRmiA2sIg61dwaRVs6jO21mnDxU0IdvE" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>