Hussein, Mohammed S., Abdul Wahab J. Al-Hamdany, and Rana A. Saeed. “Synthesis and Spectral Characterization of Some New Substituted Bis-Spirocyclohexanones Derived from Acetone”. Science Journal of University of Zakho 6, no. 4 (December 30, 2018): 155–159. Accessed April 20, 2024. https://sjuoz.uoz.edu.krd/index.php/sjuoz/article/view/548.