Pulungan, Akhir Mauludin, Department of Chemistry, Faculty of Mathematic and Natural Science, Universitas Negeri Medan
Purba, Caecilia Antonia, Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Medan, Medan Indonesia (Indonesia)
Purba, Greace Enita, Department of Biology, Faculty of Mathematics and Natural Sciences, State University of Medan (Indonesia)
Purba, Jamalum, Department of Chemistry, Faculty of Mathematics and Sciences, Universitas Negeri Medan, Medan, Indonesia (Indonesia)
Purwanti, Rizka, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Padang State University, Padang (Indonesia)

286 - 290 of 556 Items    << < 56 57 58 59 60 > >> 

This work is licensed under a Creative Commons Attribution 4.0 International License.