1. Fehintola, J.O. (2014). Teachers’ characteristics as correlates of students’ academic performance among secondary school students in Saki-west local government area of Oyo State. Journal of Educational and Social Research, 4(6), 459-468. https://doi.org/10.5901/jesr.2014.v4n6p459.
2. Asio, J. M. R., & Riego de Dios, E. E. (2018). 21st-century attributes and skills of a teacher in the perspective of college students. Zenodo. http://doi.org/10.5281/zenodo.3961838.
3. Francisco, C. D. C., & Celon, L. C. (2020). Teachers' instructional practices and its effects on students' academic performance. International Journal of Scientific Research in Multidisciplinary Studies, 6(7), 64-71. http://dx.doi.org/10.21474/IJAR01/987.
4. Mercado, I. P. (2013). Relationship of the online English teachers’ competencies to selected variables: implications to online English teaching. American International Journal of Contemporary Research, 3(12),39-43. http://www.aijcrnet.com/journal/index/601.
5. Adeyemi, B. B. (2014). Teachers and students variables in the teaching of oral English in senior secondary schools in Osun State, Nigeria. International Journal of Humanities and Social Sciences, 4(6), 135-139. http://www.ijhssnet.com/journal/index/2437.