OSIFO, S. J.; ISIBOR, F. O. The Seven P’s in Service Delivery: An Overview of the Nigerian Banking Sector. Nigerian Academy of Management Journal, [S. l.], v. 12, n. 1, p. 83–92, 2017. Disponível em: https://namj.tamn-ng.org/index.php/home/article/view/117. Acesso em: 23 apr. 2026.