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Hariyanto, E. Upaya Meningkatkan Aktivitas Dan Hasil Belajar Fisika Dengan Menerapkan Pembelajaran Kooperatif Tipe Student Team Achievement Division (STAD) Dengan Pendekatan Kontekstual: Efforts to Improve Activities and Learning Outcomes of Physics by Applying Cooperative Learning Type of Student Team Achievement Division (STAD) With Contextual Approach. icecrs 2019, 2, 313-320.