Djieyep-Djemna, F., et al. “In Vitro Activity of Selected Ruminant Sera on Trypanosoma Congolense Broden, 1894”. Nigerian Journal of Parasitology, vol. 40, no. 2, Sept. 2019, pp. 309-13, https://njpar.com.ng/index.php/home/article/view/325.