Skunda Diliarosta1,*, Sudarmin2, Annisa Efendi3, Dwisari Dillasamola1, Biomechy Oktomalioputri4, Rehani Ramadhani4
1Department of Science Education, Universitas Negeri Padang, INDONESIA.
2Chemistry Department, Faculty of Mathematics and Natural Science, Semarang State University, INDONESIA.
3Pharmacology department, Faculty of Pharmacy, Andalas University, INDONESIA. 4Histology Department, Faculty of Medicine, Andalas University, INDONESIA.