Adeniyi Comfort Olawumi. “Effects of Integrated Group-Based Mastery Learning Model (IGBLM) on Mathematics Achievement of Secondary School Students in Lagos State, Nigeria.”. Interdisciplinary Journal Of Lifelong Learning 2, no. 1 (July 12, 2026): 57-65. Accessed July 14, 2026. https://njms.unilag.edu.ng/index.php/IJLL/article/view/2749.