Fernando, R. L. (1975). The comparative effectiveness of the modern mathematics and traditional approaches in developing the ability to solve problems among grade six pupils in Bokod and Daklan Elementary Schools in Benguet Province [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Fernando, Roberto L. The Comparative Effectiveness of the Modern Mathematics and Traditional Approaches in Developing the Ability to Solve Problems Among Grade Six Pupils in Bokod and Daklan Elementary Schools in Benguet Province [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA-referens (9:e uppl.)Fernando, Roberto L. The Comparative Effectiveness of the Modern Mathematics and Traditional Approaches in Developing the Ability to Solve Problems Among Grade Six Pupils in Bokod and Daklan Elementary Schools in Benguet Province [microform]. Photoduplication Service, University of the Philippines Library, 1975.