Fakri Mustafa, Y., نمير, and N. Mazin Zeki. “Synthesis and Pharmacological Profiles of 6,7-Dihydroxycoumarin and Its Derivatives: A Concise Review”. Iraqi Journal of Pharmacy, vol. 20, Dec. 2023, pp. 174-88, https://rjps.uomosul.edu.iq/index.php/iphr/article/view/21552.