Prof. Dr. Ali Darub Kassar, Department of Agricultural Economics has participate  in the Public Discussion Committee of PhD student Jassim Nassif Jassim / College of Agriculture/  Tikrit University, for his thesis tagged: Estimating the economic efficiency of some vegetable crops in Diyala Governorate for the agricultural season 2020-2021 using the traditional  and drip irrigation system, Baquba District, an application model , in the hall of Martyr Sabah Bahaa El-Din, College of Agriculture, Tikrit University, on Thursday 19/5/2022, and after the scientific discussion and the introduction of the amendments that were proposed by the members of the committee to the subject, the thesis was accepted with a full degree.. Blessed are the efforts made.