Hussain A. Abubakar, Izunna Somadina Okwelogu, and Victor Olugbenga Ayoko. “Implementation of Integrated Personnel and Payroll Information System (IPPIS) in Tertiary Institutions in Nigeria: Impact and Way Forward”. Journal of Higher Education and Academic Advancement 1, no. 2 (May 4, 2023): 110–119. Accessed October 12, 2025. https://journal.antispublisher.id/index.php/EJHEAA/article/view/110.