1. Adamu A. (2022). Online Clearance System. FUDMA Journal of Science. 6(2), 283-291
2. Agbo-Ajala O. & Makinde, O. E. (2015). A web-based database-driven students’ clearance system. Int. J. Adv. Res. Comput. Sci. Softw. Eng. 5(7), 65–69 (2015)
3. Ardo, F. U. (2021). Online Clearance System. (B.Sc.). Baze University, Abuja. Final year student’s project
4. Ben, U. C., Henry, U. C., & Iriaoghuan, A. I. (2015). Design and implementation of online clearance system: a case study of Imo State University. European Journal of Applied Sciences, 7(1), 25-31.
5. Cadiz III, L., Bondoc, C. N., & Estroga, J. (2017). Moving Towards Global Technological Advancement: Basis for the E-Clearance Program Development. International Journal of Computing Academic Research (IJCAR), 6(6), 171-179.