Kadhim, Rayan Riyad, and Sahab Ayed Al-Ajili. “COGNITIVE EXTENSION KNOWLEDGE NEEDS OF AGRICULTURAL STAFF IN ASPECT OF CONSERVATIVE AGRICULTURE IN NINEVEH GOVERNORATE2020”. Diyala Agricultural Sciences Journal , vol. 12, no. special Issue, July 2020, pp. 687-96, doi:10.52951/dasj.20121058.