oleh handayani, meyga fitri; Institut Teknologi Medan , Suprayetno, Suprayetno; Universitas Medan Area

oleh UTAMI, SHOFIA , SAPUTRI, AYU , INSANI, LAYLI , ALFATHAN, MUHAMMAD , SUHARTO, AJI , DEWI, AYU , WIJAYANTI, ELA , KHOTIMAH, KHUSNUL , SUPRAYETNO, SUPRAYETNO

oleh Elfita, Elfita; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Raya Palembang Prabumulih Km 32, Indralaya, Ogan Ilir, South Sumatera 30662 , Munawar, Munawar; Department of Biology, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Raya Palembang Prabumulih Km 32, Indralaya, Ogan Ilir, South Sumatera 30662 , Muharni, Muharni; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Raya Palembang Prabumulih Km 32, Indralaya, Ogan Ilir, South Sumatera 30662 , Suprayetno, Suprayetno; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sriwijaya University, Jl. Raya Palembang Prabumulih Km 32, Indralaya, Ogan Ilir, South Sumatera 30662