Al-Hamdany, A., Mustafa, A., & Hamza ِ. (2008). Synthesis of Spiro Pyrrolidines From the Addition of Schiff Bases to -Arylidene Cyclohexanones. Journal of Education and Science (JES), 21(2), 19–27. https://doi.org/10.33899/edusj.2008.51236