K. Lakshmi Narayan, and N. Pattabhiramacharyulu. “An Alternative Food for the Predator and Constant Harvesting of Both the Species”. Jordan Journal of Mathematics and Statistics, vol. 2, no. 1, May 2025, pp. 43-54, https://jjms.yu.edu.jo/index.php/jjms/article/view/1201.