Syahrina, D. and Noval, N. 2021. Optimasi Kombinasi Asam Sitrat dan Asam Tartrat sebagai Zat Pengasam pada Tablet Effervescent Ekstrak Ubi Jalar Ungu (Ipomoea batatas L): Optimization of the Combination of Citric Acid and Tartaric Acid as an Acidifying Agent in Effervescent Tablets of Purple Sweet Potato Extract (Ipomoea batatas L). Jurnal Surya Medika (JSM). 7, 1 (Aug. 2021), 156–172. DOI:https://doi.org/10.33084/jsm.v7i1.2651.