Khusniyah, S.; Santoso, S. T. P.; Mukhlis, A.; Rochmah, A. Development of the SOPANSPEAK Interactive Multimedia Application As a Learning Innovation to Instill Language Politeness in Early Childhood. JOIVE 2026, 9 (3), 46-57. https://doi.org/10.20961/joive.v9i3.3682.