Marzuki M, Hasratuddin H, Sumarno S. THE SELF CONCEPT OF ELEMENTARY SCHOOL STUDENTS IN LEARNING MATERIALS THROUGH 4C-BASED PROBLEM-BASED LEARNING. ictl [Internet]. 2026 Jun. 29 [cited 2026 Aug. 7];4:334 – 347. Available from: https://conference.ut.ac.id/index.php/ictl/article/view/1439