Ukaigwe, P. C., and Innocent U. Igbozuruike. “Planning: A Tool for Administration of Teachers’ Competence Development Programmes for Improved Service Delivery in Secondary Schools in Rivers State, Nigeria”. Advances in Social Sciences Research Journal, vol. 6, no. 1, Jan. 2019, pp. 91-100, doi:10.14738/assrj.61.5966.