Mbachiantim, J. T., N. C. Johnson, and V. M. Ogbamgba. “Diet Formulation and Odour Control in Intensive Swine Production”. European Journal of Science, Innovation and Technology, Vol. 2, no. 1, Feb. 2022, pp. 33-38, https://ejsit-journal.com/index.php/ejsit/article/view/63.