SURYONO, S. Penerapan Supervisi Kepala Sekolah Melalui Teknik Kelompok untuk Peningkatan Kinerja Guru SMA Negeri 5 Jember. Education Journal : Journal Educational Research and Development, [S. l.], v. 5, n. 1, p. 151–164, 2021. DOI: 10.31537/ej.v5i1.430. Disponível em: https://jurnal.unipar.ac.id/index.php/ej/article/view/430. Acesso em: 3 aug. 2025.