Hussain, F.H. and Al-Chawshili, L.H. 2019. 4,4’-bis-[4-(substituted-phenyl)-1-azetidinyl-2-one]-biphenyl Via an Improved Procedure Using Zn-Cu Couple in Sonic Reformatsky Reaction. EURASIAN JOURNAL OF SCIENCE AND ENGINEERING. 4, 4 (Jun. 2019), 148–155. DOI:https://doi.org/10.23918/eajse.v4i4p148.