TUMANGGOR, Raja Oloan. Landasan Etis Undang-Undang No 23 Tahun 22 Mengenai Pendidikan dan Layanan Psikologi. J-CEKI : Jurnal Cendekia Ilmiah, [S. l.], v. 5, n. 4, p. 919–927, 2026. DOI: 10.56799/j-ceki.v5i4.16612. Disponível em: https://al-haramjournal.co.id/J-CEKI/article/view/16612. Acesso em: 6 aug. 2026.