H. Hardoko, M. Jessica, and Y. Halim, “Antibacterial Activity of Cough Suppressant Functional Drink from Betel Leaves (Piper sarmentosum), Lime (Citrus aurantifolia) and Honey: doi.org/10.26538/tjnpr/v4i10.7”, TJNPR, vol. 4, no. 10, pp. 695–702, Oct. 2020, Accessed: Apr. 07, 2025. [Online]. Available: https://tjnpr.org/index.php/home/article/view/1023