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