N. . O. S. Nurdin, J. . J. E. Wantania, and R. A. A. Mewengkang, “Assosiation between Serum Cortisol Levels and Anxiety levels In Elective and Emergency Cesarean Section: Hubungan antara Kadar Kortisol Serum dan Tingkat Kecemasan Pada Operasi Caesar Elektif dan Darurat”, Indones J Obstet Gynecol, vol. 10, no. 4, pp. 205–210, Oct. 2022.