Meri Susanti1, Sanusi Ibrahim2, Yahdiana Harahap3, Dachriyanus1,*
1Faculty of Pharmacy, Andalas University, West Sumatra, 25163, INDONESIA.
2Department of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, West Sumatra, 25163, INDONESIA.
3Faculty of Pharmacy, Universitas Indonesia, 16424, INDONESIA.