Cortes, Roberto B. <br/><br/>
Comparative study of scores of the male and female in science students among the grade five pupils at San Roque Arbol Elementary School, Lubao West, Pampanga  [manuscript] / 
Roberto B. Cortes. 
 - Magalang, Pampanga :  Pampanga Agricultural College,  April 1991. 
 - 53 pages ;  27 cm.