Hermite-Hadamard Type Integral Inequalities for Functions Whose Mixed Partial Derivatives Are Co-ordinated Preinvex. Punjab University Journal of Mathematics, [S. l.], v. 52, n. 1, p. 63–76, 2025. Disponível em: https://pujm.pu.edu.pk/index.php/pujm/article/view/313. Acesso em: 29 jun. 2025.