Stability Analysis of a Mathematical Model on the Revitalization Efforts of Local Languages in East Kalimantan. West Science Interdisciplinary Studies, [S. l.], v. 4, n. 01, p. 26–35, 2026. DOI: 10.58812/wsis.v4i01.2556. Disponível em: https://wsj.westsciences.com/index.php/wsis/article/view/2556. Acesso em: 4 feb. 2026.