SANGODAPO, T. Some Notions on Convexity of Picture Fuzzy Sets: Convexity of Picture Fuzzy Sets. Journal of the Nigerian Mathematical Society, [S. l.], v. 41, n. 2, p. 83–103, 2022. Disponível em: https://ojs.ictp.it/jnms/index.php/jnms/article/view/863. Acesso em: 7 dec. 2022.