Mujuni, P., N. Kanuya, and F. Mgongo. “The Incidence Rates and Relationships Between Endometritis and Ovarian Inactivity of Postpartum Dairy Cows in a Tropical Area”. Tanzania Veterinary Journal, vol. 16, no. 2, June 1996, pp. 23-31, https://tvj2.sua.ac.tz/vet2/index.php/TVJ/article/view/485.