Latifatul Kamilia, Ahmaniyah Ahmaniyah, Ratna Indriyani, and Emdat Suprayitno. “Cohort Study: Pregnant Exercise With Primigravida Stage II of Labor Delivery”. International Journal of Health Engineering and Technology 3, no. 3 (September 30, 2024). Accessed June 13, 2026. https://www.afdifaljournal.com/journal/index.php/ijhet/article/view/38.