Reynold Pantas Sinaga, Rosben Sihombing, Osco Parmonangan Sijabat. SOSIALISASI PENINGKATAN PROFESSIONAL PENDIDIK MELALUI PENELITIAN TINDAKAN KELAS BAGI GURU GURU SMA/SMK SWASTA HKBP PEMATANGSIANTAR. P3JI [Internet]. 2023 Aug. 8 [cited 2026 Jul. 21];1(3):109-13. Available from: https://jurnal.migascentral.com/index.php/p3ji/article/view/60