HSM, Z.A.R., Suwartiningsih, N. and Luqmana, I.I. 2021. A Mathematical Model of Microplastic Spreading into Fish Digestive Based On Abiotic Factor. Jurnal Fourier. 10, 2 (Oct. 2021), 74–80. DOI:https://doi.org/10.14421/fourier.2021.102.74-80.