Muchtaromah, Bayyinatul, et al. “Comparative Analysis of Phytochemicals and Antioxidant Activity of Ethanol Extract of Centella Asiatica Leaves and Its Nanoparticle Form: doi.org 10.26538 Tjnpr V5i3.9”. Tropical Journal of Natural Product Research (TJNPR), vol. 5, no. 3, Mar. 2021, pp. 465-9, https://tjnpr.org/index.php/home/article/view/724.