Mekonnen, T. T. . “A Genralist Predator Prey Mathematical Model Analysis on a Cusp Point and Bogdanov-Takens Bifurcation Point”. International Journal of Mathematical Research, vol. 4, no. 2, Feb. 2015, pp. 64-75, doi:10.18488/journal.24/2015.4.2/24.2.64.75.