Attah, B., & 		Adebayo, O.
(2018).
 Effects of Training and Workload of Teachers’ on Achievement of Students’ in Mathematics in Senior Schools in Jos Metropolis, Plateau State, Nigeria.
<em>NIU Journal Of Humanities, 3</em>(1), 209-218.
Consultado de <a href="https://www.niujournals.ac.ug/ojs/index.php/niuhums/article/view/264" target="_new">https://www.niujournals.ac.ug/ojs/index.php/niuhums/article/view/264</a>