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Syahril, Herijon Muhammad and Ngatijo, - and Muhaimin, Muhaimin (2019) Efektifitas Model Pembelajaran Problem Base Learning Berbantukan Multimedia Terhadap Kemampuan Pemecahan Masalah Siswa. JISIC (Journal of The Indonesian Society of Integrated Chemistry), 11 (2). pp. 43-48. ISSN 2621-5543