R. Eswari and V. Piramanantham (2018) “Existence of Positive Periodic Solutions in a Non-selective Harvesting Impulsive Predator-prey System with Multiple Delays”, International Journal of Mathematics And its Applications, 6(2 - A), pp. 383–393. Available at: https://ijmaa.in/index.php/ijmaa/article/view/686 (Accessed: 22 July 2024).