“Formulation of Handsanitizer With Antibacterials Substance from N-Hexane Extract of Soursop Leaves (Annona Muricata Linn)”. Malaysian Journal of Fundamental and Applied Sciences 13, no. 1 (April 2, 2017). Accessed November 16, 2026. https://mjfas.utm.my/index.php/mjfas/article/view/527.