RUBANI, Siti Nur Kamariah; DZULKARNAIN HAKIM NORBASHAH; ARIHASNIDA ARIFFIN; NORMAH ZAKARIA; NORHASYIMAH HAMZAH. Optional and Non-Optional Teacher Competencies from Aspects of Content Knowledge in Vocational College. Research and Innovation in Technical and Vocational Education and Training, [S. l.], v. 1, n. 1, p. 220–223, 2021. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/ritvet/article/view/276. Acesso em: 9 apr. 2026.