Referencias

http://www.unesco.org/new/es/culture/themes/endangered-languages/faq-on-endangered-languages/

http://www.cienciamx.com/index.php/ciencia/humanidades/20386-que-hacer-preservar-lengua

https://www.inali.gob.mx/

https://www.inali.gob.mx/

https://www-lifeder-com.cdn.ampproject.org/v/s/www.lifeder.com/lenguas-indigenas-oaxaca/amp/?usqp=mq331AQA&fbclid=IwAR3yscx4NU_lWrPva5Eprl6EhZbLNRsdEEBqaLaF42BucGmLgLyzdboSZgc&amp_js_v=0.1#referrer=https%3A%2F%2Fwww.google.com&amp_tf=De%20%251%24s&ampshare=https%3A%2F%2Fwww.lifeder.com%2Flenguas-indigenas-oaxaca%2F

https://sic.gob.mx/ficha.php?table=inali_li&table_id=48

https://www.familysearch.org/wiki/es/Idiomas_y_dialectos_de_Oaxaca,_M%C3%A9xico?fbclid=IwAR1CmW9kBYjifEgwgrYYqvd7kf3pAT8PZxwdKWQtsInba7U5bjx-yaiPH68

https://www.bancomundial.org/es/news/infographic/2019/02/22/lenguas-indigenas-legado-en-extincion

http://neomexicanismos.com/cultura-mexico/dia-de-las-lenguas-indigenas-top-10-datos-curiosos/

https://www.bbc.com/mundo/noticias/2014/06/140613_cultura_lenguas_muertas_mz