@book{297547,
	author = {Mabilangan, Rina A.},
	title = {Problem Solving Strategies of High School Students on Non-Routine Problems},
	publisher = {Alipato: A Journal of Basic Education},
	year = {2011},
	url = {http://journals.upd.edu.ph/index.php/ali/article/view/2759/2580}
}