K. ARUMUGAM; R. ABDUL SALEEM; S. ARUNVASAN. Solving Fuzzy Assignment Problem using Symmetric Hexagonal Fuzzy Number. International Journal of Mathematics And its Applications, [S. l.], v. 6, n. 1 - D, p. 741–746, 2018. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1135. Acesso em: 22 jul. 2024.