H. EGHBALI, M. A. EGHBALI, and A. VAHIDIAN KAMYAD, “Optimizing Human Diet Problem Based on Price and Taste Using Multi-Objective Fuzzy Linear Programming Approach”, Int. J. Optim. Control, Theor. Appl. (IJOCTA), vol. 2, no. 2, pp. 139–151, May 2012.