Rujukan Ukit

  1. ↑ Raymond G. Gordon, Jr, penyunting (2005). Ethnologue: Languages of the World, Fifteenth edition. SIL International. ISBN 1-55671-159-X. 
  2. ↑ John Alexander Hammerton; Dr. Charles Hose (1922). Peoples of All Nations. Concept Publishing Company. ISBN 81-7268-156-9. 

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