Azad Abdullah Saeed. “Using Factor Analysis to Identify the Factors Affecting the Causes of Delayed Pregnancy in Sulaymaniyah Governorate”. The Scientific Journal of Cihan University– Sulaimaniya 2, no. 2 (December 1, 2018): 507-521. Accessed February 12, 2026. https://journal.sulicihan.edu.krd/index.php/sjcus/article/view/443.