Aritonang, Tetty Rina, Sri Rahayu, Lenny Irmawaty Sirait, Marni Br Karo, Tigor Peniel Simanjuntak, Rosdiana Natzir, Andi Wardihan Sinrang, Muh Nasrum Massi, Mochammad Hatta, and Emma Kamelia. “The Role of FSH, LH, Estradiol and Progesterone Hormone on Estrus Cycle of Female Rats”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 35, no. 1 (July 29, 2017): 92–100. Accessed May 2, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7834.