Rahayu, Annisa, Yuni Yulida, and Faisal Faisal. 2017. “A MATHEMATIC MODEL OF TWO MUTUALLY INTERACTING SPECIES WITH MORTALITY RATE FOR THE SECOND SPECIES”. TROPICAL WETLAND JOURNAL 3 (2), 21 - 25. https://doi.org/10.20527/twj.v3i2.50.