Halim, E., and L. Zakaria. “SAWI TRANSFORMATION FOR SOLVING A SYSTEM OF LINEAR ORDINARY DIFFERENTIAL EQUATIONS”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 17, no. 4, Dec. 2023, pp. 2171-86, doi:10.30598/barekengvol17iss4pp2171-2186.