Ashar, Nurcahya, and Susilo Hariyanto. 2023. “A NUMERICAL STUDY OF SUBSTANCE SPREAD IN THE POLL FROM TWO POINT SOURCES”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan 17 (1), 0009-0020. https://doi.org/10.30598/barekengvol17iss1pp0009-0020.