A. Agustina, A. Nusi, N. Nurizzati, D. Kartika, A. Ramadhan, and S. Elpalina, “Prototype of Virtual Linguistic Landscape (VLL)-Based Mobile Application in West Sumatra”, Salud, Ciencia y Tecnología, vol. 6, p. 2543, Jan. 2026, doi: 10.56294/saludcyt20262543.