Arop, F. O., Mbon, U. F., Ekanem, E. E. and Ukpabio, G. E. (2020) “School Management Practices, Teachers Effectiveness, and Students’ Academic Performance in Mathematics in Secondary Schools of Cross River State, Nigeria”, Humanities and Social Sciences Letters, 8(3), pp. 298–309. doi: 10.18488/journal.73.2020.83.298.309.