JULINAWATI JULINAWATI 1Chemistry Department, Faculty of Mathematics and Natural science, Universitas Syiah Kuala, Building B FMIPA, Jl Syech Abdurrauf No. 3 Kopelma Darussalam 23111, Banda Aceh Indonesia
BASUKI WIRJOSENTONO Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Jalan Bioteknologi No.1 Kampus USU, 20155, Medan Indonesia
Chemistry Department, Faculty of Mathematics and natural science
EDDIYANTO EDDIYANTO 3Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Negeri Medan, Jl. Willem Iskandar Psr. V Medan Estate, 20222 Sumatera Utara Indonesia
Chemistry Department, Faculty of Mathematics and natural science
SAHARMAN GEA Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Jalan Bioteknologi No.1 Kampus USU, 20155, Medan Indonesia
Chemistry Department, Faculty of Mathematics and natural science
ICHWANA RAMLI Department of Agricultural Engineering-Faculty of Agriculture, Universitas Syiah Kuala, Jl. Tgk. Hasan Krueng Kalee No. 3 Kopelma Darussalam, 23111 Banda Aceh Indonesia
Department of Agricultural Engineering-Faculty of Agriculture