Roza MLAA, Armadany FI, Wahyuni W, Ruslin R, Lubis AF, Akib NI. Optimization of Anti-Bacterial Gel from Ethyl Acetate Fraction of Purple Sweet Potato Leaves (Ipomoea Batatas L.) Using Hydroxy Propyl Methyl Cellulose (HPMC) and Testing Its Activity Against Staphylococcus Epidermidis Bacteria. IJGHR [Internet]. 2026 Sep. 7 [cited 2026 Sep. 7];8(5):355-70. Available from: https://jurnal2.globalhealthsciencegroup.com/index.php/IJGHR/article/view/2075