Dalimunthe, Gabena Indrayani, Department of Pharmacy, Universitas Muslim Nusantara Al Washliyah (Indonesia)
Damanik, Marini, Department of Chemistry, State University of Medan (Indonesia)
Damanik, Marini, Chemistry Department Faculty of Mathematics and Natural Science, State University of Medan (Indonesia)
Damanik, Marini, State University of Medan, Address, Medan 2021, Indonesia (Indonesia)
Damanik, Marini, Billingual Program of Chemistry Depatment, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl. Willem iskandar Ps. V, Medan estate, Indonesia. (Indonesia)

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