“Synthesis and Biological Evaluation of Some New 1-Pheyl, 3-Ethoxycarbonyl, 5-Hydroxy Indole Derivatives As a Potential Antimicrobial Agents”. Global Journal of Science Frontier Research 12, no. B7 (December 8, 2012): 33–44. Accessed August 13, 2026. https://www.journalofscience.org/index.php/GJSFR/article/view/447.