Saavedra, Joan, Victorina Palanas, and Jeruel Canceran. “Revalidation of the Developed Learning Material in Analytic Geometry and Trigonometry in IDEA Format”. JPAIR Multidisciplinary Research 53, no. 1 (July 26, 2023): 91–108. Accessed April 2, 2025. https://philair.ph/index.php/jpair/article/view/832.