Sabet SH, Tayeb NI. Obstacles affecting the use of scientific methods in time management of human resources at the Directorate of sports activity. HJUOZ [Internet]. 2018 Mar. 30 [cited 2024 Nov. 24];6(1):256-68. Available from: https://hjuoz.uoz.edu.krd/index.php/hum/article/view/311