Oday Ali Chichan, Kauakib Jafar Rasheed, Adnan Mahmud Saleh, Sami Salman Chiad, Nadir Fadhil Habubi, “ Synthesize of CdS and CdS:V Films via Spray Pyrolysis Technique: Morphology and Optical Properties ”, DE, pp. 356 - 365, May 2021.