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This is to certify that your paper entitled «Improving water use efficiency and water productivity by supervising the operation of drip irrigation systems in Faryab, Kerman» was indexed with 11 pages, in the CIVILICA citation database, code COI:NCIID04_040, after evaluation and approval of the referees of the "The 1st International and 4th National Congress on Iranian Irrigation and Drainage held in Urmia 2019.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.