Toaha, Syamsuddin. “Stability Analysis And Maximum Profit Of Logistic Population Model With Time Delay And Constant Effort Of Harvesting”. Jurnal Matematika, Statistika dan Komputasi 3, no. 1 (January 29, 2018): 9-18. Accessed April 19, 2024. https://journal.unhas.ac.id/index.php/jmsk/article/view/3296.