Rusmayadi, Muh., Samsuriadi, Lidaini Lidaini, Muhamad Galang Isnawan, Naif Mastoor Alsulami, and Aditya Purnama. “The Effect of Learning Intensity on students’ Statistics Course Scores: A Multiple Regression Approach With Ridge Regularization”. Polyhedron International Journal in Mathematics Education 4, no. 1 (May 30, 2026): 75–92. Accessed August 17, 2026. https://nakiscience.com/index.php/pijme/article/view/294.