Rudhito, M. Andy, Sri Wahyuni, Ari Suparwanto, and Frans Susilo. “SYSTEMS OF FUZZY NUMBER MAX-PLUS LINEAR EQUATIONS”. Journal of the Indonesian Mathematical Society 17, no. 1 (February 13, 2011): 17–28. Accessed October 5, 2024. http://jims-a.org./index.php/jimsa/article/view/10.