Widjaja, J., N. Z. Putra Irawan, Y. Soeharyadi, and D. R. Tampubolon. “A MODEL ON MARKET EQUILIBRIUM USING A DIFFERENTIAL EQUATION WITH TIME DELAYS”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 19, no. 3, July 2025, pp. 1893-04, doi:10.30598/barekengvol19iss3pp1893-1904.