Zubir, Moondra, Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Negeri Medan (Indonesia)
Zubir, Moondra, Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of medan (Indonesia)
Zubir, Moondra
Zubir, Moondra, Department of Chemistry, Faculty of Mathematics and Science, Universitas Negeri Medan, Medan (Indonesia)
Zubir, Moondra, Chemistry Department, Faculty of Mathemathics and Natural Science, Universitas Negeri Medan (Indonesia)

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