Selly, Rini, Chemistry Depatment, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Jl. Willem iskandar Ps. V, Medan estate, Indonesia. (Indonesia)
Selly, Rini, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan (Indonesia)
Selly, Rini, Departement of Chemistry, Faculty of Mathematics and Natural Science, Medan State University, 20221, Indonesia (Indonesia)
Selly, Rini, Department of Chemistry, State University of Medan (Indonesia)
Selly, Rini, Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Negeri Medan, Medan 20221, Indonesia (Indonesia)

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