@book{7234,
	author = {Ramirez, Jay F. and Sumagang, Marvelon H.},
	title = {Performance in quadratic equation of Junior students in Cogon National High School/},
	publisher = {J.H. Cerilles State College,},
	year = {2006.},
	address = {Mati, San Miguel, Zamboanga del Sur; }
}