“PHYTOCHEMICAL STUDIES AND IN VITRO CYTOTOXICITY SCREENING OF PIPER BETLE LEAF (PBL) EXTRACT”, Int. Res. J. Pharm., vol. 1, no. 12, pp. 387–394, Dec. 2010, Accessed: Aug. 24, 2026. [Online]. Available: https://irjponline.org/index.php/irjp/article/view/2267