“Last Speakers of the Indigenous Language in Imminent Disappearance: The Zoque Ayapaneco, in Tabasco, Mexico”. Raíces: Revista de Ciencias Sociales y Políticas (August 9, 2021): 55–68. Accessed August 8, 2025. https://revistas.unan.edu.ni/index.php/Raices/article/view/1143.