WIJAYANTI, R.; PRAYITNO, H. J.; SUMARDJOKO, B. Progressive leadership in strengthening teacher professionalism at SMK Muhammadiyah 1 Baturetno. EDUCTUM: Journal Research, [S. l.], v. 5, n. 2, p. 135–141, 2026. DOI: 10.56495/ejr.v5i2.1445. Disponível em: https://jurnal.larisma.or.id/index.php/EJR/article/view/1445. Acesso em: 2 mar. 2026.