Non-linear interval-valued intuitionistic fuzzy number (IVIFN) approach for an EPQ model with optimal investment in defective items considering learning effects. Engineering Review, [S. l.], v. 44, n. 4, p. 160–182, 2024. Disponível em: https://engineeringreview.org/index.php/ER/article/view/2563.. Acesso em: 19 oct. 2025.