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.
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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.