Retha, Nabeel A.A.AL., and Ali M. Farhan. “Synthesis & Identification Some Heterocyclic Compounds Derivatives of Biotin”. Al-Qadisiyah Journal of Pure Science 19, no. 3 (July 20, 2017): 156-176. Accessed January 18, 2026. https://www.journalsc.qu.edu.iq.51-77-64-103.cpanel.site/index.php/JOPS/article/view/169.