Popov, V. “ELECTION F INEAR EMAND UNCTION ARAMETERS OR NSURING HE ORRECT UBSTITUTION FFECT ALCULATION”. Journal of Information Technologies in Education (ITE), no. 16 (March 13, 2014): 166–169. ccessed August 25, 2026. https://ite.kspu.edu/index.php/ite/article/view/277.