Fauzi, M. Amin, Hasratuddin Siregar, Budi Halomoan Siregar, and Dwi Novita Sari. “A Problems Solving and Thinking Critical Ability Student Through Realistic Approach Based on Problem Non-Routine by Blended Learning in the Department Mathematics, Faculty Mathematics and Natural Science, Medan State University”. IJO - International Journal of Mathematics (ISSN: 2992-4421 ) 5, no. 11 (November 30, 2022): 01-14. Accessed January 17, 2026. https://www.ijojournals.com/index.php/m/article/view/605.