Muzaffar Saminjonovich Maqsudov. (2026). THE EFFECTIVENESS OF PROBLEM-BASED LEARNING AND CASE- STUDY METHODS IN DEVELOPING CHEMICAL THINKING: AN EXPERIMENTAL STUDY . Ta’lim Innovatsiyasi Va Integratsiyasi, 70(6), 481-485. https://journalss.org/index.php/tal/article/view/32564