Agustin, Zulfani Nurdiana, Sifak Indana, and Nadi Suprapto. “Improving Students’ Critical Thinking Skills through a Deep Learning-Oriented Group Investigation Model”. Journal Evaluation in Education (JEE) 7, no. 1 (January 12, 2026): 34-44. Accessed January 17, 2026. https://cahaya-ic.com/index.php/JEE/article/view/2527.