Mahamat, Ouagal, et al. “Seroprevalence, Geographical Distribution, and Risk Factors of Peste Des Petits Ruminants in the Republic of Chad”. Journal of Advanced Veterinary and Animal Research, vol. 5, no. 4, Dec. 2018, pp. 420-5, https://banglajol.info/index.php/JAVAR/article/view/39506.