S. Umar, S. Gusriyani, A. Afriwardi, and Y. Aldi, “Activities of Hydrocotyle sibthorpioides Lam. Extract in Capsule on Natural Killer and CD8 Cells in Human: http://www.doi.org/10.26538/tjnpr/v7i8.29”, TJNPR, vol. 7, no. 8, pp. 3766–3769, Aug. 2023, Accessed: Jun. 19, 2025. [Online]. Available: https://www.tjnpr.org/index.php/home/article/view/2445