Balarabe, S.; M.A, A. .; A.K, R. .; H.B, I. . A Survey on teacher’s Variables Responsible for Student Poor Academic Performance in Biology. A Case Study of Zaria Educational Zone of Kaduna State, Nigeria. Int J Innov Educ Res 2019, 7 (7), 513-527. https://doi.org/10.31686/ijier.vol7.iss7.1630.