DUANGPHACHANH, P. Guidelines For Developing 21St Century Skills for Administrators in Secondary Schools of Shikhodttabong District, Vientiane Capital. Souphanouvong University Journal Multidisciplinary Research and Development , [S. l.], v. 12, n. Fast Track, p. 348–355, 2026. DOI: 10.69692/SUJMRD1203F348. Disponível em: https://www.su-journal.com/index.php/su/article/view/1678. Acesso em: 9 sep. 2026.