Sobral, Marcos Felipe, Ana Paula Cabral Seixas Costa, and Adiel Teixeira de Almeida Filho. “Multi-Criteria Model for Classifying Clients of Companies Distributing Liquefied Petroleum Gas”. Brazilian Journal of Operations & Production Management 7, no. 1 (August 8, 2010): 53–75. Accessed May 1, 2025. https://www.bjopm.org.br/bjopm/article/view/V7N1A3.