Casmudi, Sugianto, Indah Ika Ratnawati, and Ari Musdholifah. “PELATIHAN DAN PENDAMPINGAN PENYUSUNAN PROPOSAL PENELITIAN TINDAKAN KELAS (PTK) GURU SMK NEGERI 4 BALIKPAPAN”. JURNAL PENGABDIAN MANDIRI 1, no. 3 (March 26, 2022): 387–394. Accessed July 5, 2025. https://bajangjournal.com/index.php/JPM/article/view/1761.