Analysis of a Discrete Predator-Prey Model for Controlling The Extinction of The Pesut Mahakam (Orcaella brevirostris) with Toxic Effect at The Mahakam River . (2023). Jurnal Matematika, Statistika Dan Komputasi, 20(1), 196-206. https://doi.org/10.20956/j.v20i1.26460