“IMPROVING LEARNING OUTCOMES USING IPS LEARNING PROBLEM-BASED LEARNING APPROACH IN CLASS IV STUDENTS OF SDN 7 TELAGA BIRU GORONTALO DISTRICT” (2022) British Journal of Global Ecology and Sustainable Development, 11, pp. 28–40. Available at: https://journalzone.org/index.php/bjgesd/article/view/172 (Accessed: 31 January 2026).