Ambarita, P. A., Siburian , E. M. ., Hutasoit, . A. H. . and Saragih, R. S. (2026) “Optimization Of Tofu Production Planning In Small And Medium Enterprises Using Linear Programming With The Simplex Method”, International Journal of Health Engineering and Technology, 5(3). doi: 10.55227/ijhet.v5i3.1204.