Lacea, Justine P, and Jay D. Buscano. “Development and Validation of Learning Activity Sheets in Rational Expressions and Linear Equations and Inequalities ”. International Journal of Multidisciplinary: Applied Business and Education Research 4, no. 5 (May 20, 2023): 1494–1502. Accessed January 24, 2026. https://ijmaberjournal.org/index.php/ijmaber/article/view/960.