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Riyanto, Riyanto (2015) Model Peningkatan Profesional Guru: Penerapan Lesson Study Pada Mata Pelajaran Biologi di Kelas XI SMA Negeri 11 Palembang. Makalah Seminar Nasional MIPA 2015 Untan Pontianak, - (-). pp. 1-14. ISSN -