The Effect of E-Learning Application through the Use of Whatsapp-Assisted Edmodo on the Students’ Learning Outcomes in the Concept of Sound Waves. JPF [Internet]. 15 Februari 2021 [dikutip 1 Agustus 2026];9(1):56-62. Tersedia pada: https://journal.unismuh.ac.id/index.php/jpf/article/view/4361