USMAN ALHAJI BABA; MUSA IBRAHIM; HABIBA BAKO MOHEMMED; OTU ROLAND IDIA. Management by Objectives and the Performance of Private Secondary Schools: Evidence from Bida Metropolis, Niger State. African Journal of Humanities and Contemporary Education Research, Nigeria, v. 22, n. 1, p. 187–206, 2026. DOI: 10.62154/ajhcer.2026.022.01021. Disponível em: https://afropolitanjournals.com/index.php/ajhcer/article/view/1493.. Acesso em: 26 oct. 2026.