USMAN, Isa Shehu; 						SULE, Hassan.
 Effects of Problem-Solving Strategy on Secondary School Physics Students’ Attitude and Academic Achievement in Jos North L.G.A., Plateau State, Nigeria.
<strong>NIU Journal of Social Sciences</strong>, [S.l.], v. 3, n. 2, p. 365-376, sep. 2017.
ISSN 3007-1690.
Available at: &lt;<a href="https://www.kampalajournals.ac.ug/ojs/index.php/niujoss/article/view/73" target="_new">https://www.kampalajournals.ac.ug/ojs/index.php/niujoss/article/view/73</a>&gt;. Date accessed: 05 apr. 2026.