OBASUYI, Osato Harriet; ORONSAYE, Osaiyekemwen Douglas; OBASUYI, Efosa Samuel. Efficacy of School-health Modifier Management Package in Managing Delinquent Behaviours of Adolescents in Secondary Schools in Ikpoba-Okha LGA, Edo State, Nigeria. NIU Journal of Educational Research, [S.l.], v. 11, n. 2, p. 15-22, june 2025. ISSN 3007-1852. Available at: <https://kampalajournals.ac.ug/ojs/index.php/NIUJED/article/view/2213>. Date accessed: 19 may 2026. doi: https://doi.org/10.58709/niujed.v11i2.2213.