Yasinia AR, Rahmawati ID, Wulandari R. IMPROVING LEARNING OUTCOMES ON THE CONCEPT OF SUBSTANCE FORMS AND THEIR CHANGES THROUGH THE ’FRIENDLY AND HEALTHY SOAP’ EXPERIMENTAL METHOD AND ROLE PLAYING METHOD: EXPERIMENTAL STUDY ON ELEMENTARY SCHOOL STUDENTS. JIPDAS [Internet]. 30 Mei 2025 [dikutip 25 Februari 2026];5(2):1349-5. Tersedia pada: https://jurnal.spada.ipts.ac.id/index.php/JIPDAS/article/view/2812