Sakar Anwar Muhammed, and Aram Ibrahem Hussen. “School Environment and Its Relationship With Scientific Achievement: A Field Study in Public and Non-Governmental High Schools in Erbil”. Zanco Journal of Human Sciences 29, no. SpC (December 15, 2025): 589–613. Accessed May 3, 2026. https://zancojournal.su.edu.krd/index.php/JAHS/article/view/4013.