Etiubon, R. U., Etiubon, A. H., & Akpan, I. W. (2021). Computer Tutorials and Drill-Practice Strategies on Senior Science Students’ Academic Achievement on Energy Transformation in Nature, Uyo, Nigeria. International Journal for Innovation Education and Research, 9(7), 387-401. https://doi.org/10.31686/ijier.vol9.iss7.3230