van Driem, George (2014). "Trans-HimalayanArquivado 06 de decembro de 2020 en Wayback Machine.", en Owen-Smith, Thomas; Hill, Nathan W. (eds.), Trans-Himalayan Linguistics: Historical and Descriptive Linguistics of the Himalayan Area, Berlin: de Gruyter, p. 11–40, ISBN 978-3-11-031083-2.
van Driem, George (2014). "Trans-HimalayanArquivado 06 de decembro de 2020 en Wayback Machine.", en Owen-Smith, Thomas; Hill, Nathan W. (eds.), Trans-Himalayan Linguistics: Historical and Descriptive Linguistics of the Himalayan Area, Berlin: de Gruyter, p. 11–40, ISBN 978-3-11-031083-2.