Hanna Mae Hoybia, and John De Vera. “Impact of Academic Stress on The Performance of The Grade 9 Students in Mathematics”. Journal of Mathematics and Statistics Studies 6, no. 3 (September 5, 2025): 83–88. Accessed November 30, 2025. https://al-kindipublishers.org/index.php/jmss/article/view/10835.