Castañeda Jr, W. D. ., R. J. N. . Angco, M. R. S. . Lobrigas, and B. A. . Damgo. “Design and Evaluation of a Technology Enhanced Professional Development Program for Secondary Mathematics Teachers”. International Journal of Learning, Teaching and Educational Research, vol. 24, no. 10, Oct. 2025, pp. 911-27, http://ijlter.myres.net/index.php/ijlter/article/view/2570.