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Simanjuntak, Bintang Ronauli and Desnita, Desnita and Budi, Esmar (2018) The Development of Web-based Instructional Media for Teaching Wave Physics on Android Mobile. JPPPF: Jurnal Penelitian dan Pengembangan Pendidikan Fisika, 4 (1). pp. 1-10. ISSN Print: 2461-0933 dan Online: 2461-1433