Umar, J.I., A. Uba, D.T. Amamatu, A.M. Alhassan, and B.R. Ahmad. “Utilisation of 5-Methylcoumarin-4β Glucoside Isolated From Vernonia Glaberrima Leaves for The Production Of 4-Hydroxy-5-Methylcoumarin Via Alkali Hydrolysis”. International Journal of Science for Global Sustainability 9, no. 2 (July 31, 2023): 99–107. Accessed August 20, 2026. https://fugus-ijsgs.com.ng/index.php/ijsgs/article/view/465.