Tindar, Mirzah, Yusuf Effendi, Adnan Abadi, and Theodorus Theodorus. “A Comparative Study of Nomegestrol Acetate and a Combination of Ethinylestradiol and Levonorgestrel for Delaying Menstruation Among Umrah Pilgrims”. Indonesian Journal of Obstetrics and Gynecology 6, no. 1 (January 18, 2018): 45–49. Accessed February 28, 2026. https://www.inajog.com/index.php/journal/article/view/757.