YUSMAN JOHAR. Contribution of Implementation of ISO 9001:2008 and Principal Leadership on Teacher Performance at SMK Kartini Batam. Formosa Journal of Sustainable Research, [S. l.], v. 2, n. 4, p. 977–1014, 2023. DOI: 10.55927/fjsr.v2i4.3633. Disponível em: https://journal.formosapublisher.org/index.php/fjsr/article/view/3633. Acesso em: 17 may. 2026.