KHUSNIYAH, Syarifatul; SANTOSO, Sandy Tegariyani Putri; MUKHLIS, Akhmad; ROCHMAH, Ainur. Development of the SOPANSPEAK Interactive Multimedia Application as a Learning Innovation to Instill Language Politeness in Early Childhood. Journal of Informatics and Vocational Education, [S. l.], v. 9, n. 3, p. 46–57, 2026. DOI: 10.20961/joive.v9i3.3682. Disponível em: https://journal.uns.ac.id/index.php/joive/article/view/3682. Acesso em: 18 aug. 2026.