Buenavista, Rolando, Michael Subido, and Elgie Liwagon. “A Qualitative Analysis on the Effects of Toxicant of the Lotka-Volterra Competition Model”. The Mindanawan Journal of Mathematics 4, no. 2 (November 30, 2022): 81–90. Accessed February 24, 2024. https://journals.msuiit.edu.ph/tmjm/article/view/151.