WELHELMINA, Welhelmina; KURNIADY, Dedy Achmad; SURURI, Sururi; KURNIATUN, Taufani Chusnul. Transformational leadership, teacher motivation, and upskilling-reskilling as determinants of 21st-century teacher competencies. Curricula: Journal of Curriculum Development, [S. l.], v. 5, n. 3, p. 1279–1292, 2026. DOI: 10.17509/curricula.v5i3.877. Disponível em: https://ejournal-education.upi.edu/curricula/article/view/877. Acesso em: 30 sep. 2026.