Mutiah, Roihatul, Kartika Nibras Umairah, Abdul Wafi, and Rahmi Annisa. 2023. “Validation of HPLC Method for Quantifying 1,4-Naphthoquinone in Ethanol and Water Extracts of Eleutherine Bulbosa: Http: www.doi.org 10.26538 Tjnpr V7i10.12”. Tropical Journal of Natural Product Research (TJNPR) 7 (10): 4193-98. https://tjnpr.org/index.php/home/article/view/2800.