Nenchidirka Gobang I, Tabitha Kamji , PhD D, John-Mark D, Rekwi R. EFFECTS OF PROBLEM-BASED LEARNING STRATEGY ON SENIOR SECONDARY TWO STUDENTS’ ATTITUDE TOWARDS ‘MOLE’ CONCEPT CHEMISTRY IN JOS NORTH, PLATEAU STATE, NIGERIA. bj [Internet]. 2025 Feb. 16 [cited 2026 May 1];. Available from: https://mail.bwjournal.org/index.php/bsjournal/article/view/2644