“Insignificant activity of extracts of Gmelina asiatica and Ipomoea digitata against skin pathogens”, Journal of Pharmaceutical Negative Results, vol. 6, no. 1, pp. 27–32, Jan. 2015, Accessed: May 14, 2026. [Online]. Available: https://mail.pnrjournal.com/index.php/home/article/view/87