Ajayi, K., 		Oyenuga, O., & 		Olanrewaju, O.
(2019).
 Content Analysis and Readability of Prescribed Secondary School Mathematics Textbook in Ogun State, Nigeria.
<em>NIU Journal Of Social Sciences, 5</em>(3), 213-224.
Consultado de <a href="https://www.kampalajournals.ac.ug/ojs/index.php/niujoss/article/view/628" target="_new">https://www.kampalajournals.ac.ug/ojs/index.php/niujoss/article/view/628</a>