SEARCH EFFECT CHANGE THE OBJECTIVE FUNCTIONCOEFFICIENTS TO THE OPTIMAL SOLUTION WITH PRACTICALAPPLICATION(USE THE PARAMETRIC PROGRAMMING). Iraqi Journal of Science [Internet]. 2024 Nov. 15 [cited 2024 Nov. 16];50(4):648-552. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/14311