DEBORAH, A. O. .; OLUWATOBILOBA , F. B. . Examining the effect of Strategic Planning on operational efficiency of Event Management firms in Lagos State . International Journal of Intellectual Discourse, [S. l.], v. 9, n. 2, 2026. Disponível em: https://www.ijidjournal.org/index.php/ijid/article/view/1167. Acesso em: 21 jul. 2026.