Umi Kalsum, Juliana, Cindy, Iswanto, Ratna Dwi Ramdhani. Peningkatkan Mutu Pembelajaran Melalui Supervisi Aktif di SMPN 1 Sangatta Selatan. AHN [Internet]. 2024 Jun. 30 [cited 2026 Jul. 3];1(1):91-7. Available from: https://jurnal.pustari.com/index.php/ahsan/article/view/13