iii Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Volume 2, Issue 2 November – 2019 Editor in Chief Artoto Arkundato Editor Lutfi Rohman Wenny Maulina Yoyok Yulianto Joko Iswanto Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) published by: Faculty of Mathematics and Natural Sciences, University of Jember Published since November 2018 with frequency of publication twice a year (May and November). Editorial Address : Kampus Tegal Boto Jl. Kalimantan 37 Kampus Tegalboto 68121 Telp. +62331 334293 Faks. +62331 330225 Email: cerimre.journal@unej.ac.id URL: https://jurnal.unej.ac.id/index.php/CERiMRE/index