Castillo, D. B. ., C. K. S. . Juan, M. R. . Tajanlangit, I. P. . Ereño, M. J. . Serino, C. Tayo, and A. A. . Espinosa. “Effects of Music on the Spatial Reasoning Skills of Grade-One Pupils”. International Journal of Learning, Teaching and Educational Research, vol. 1, no. 1, Jan. 2014, pp. 73-83, http://www.ijlter.net/index.php/ijlter/article/view/1222.