^ Sujaritlak Deepadung (1996) “Mon at Nong Duu, Lamphun Province”, in Mon-Khmer Studies[1], volume 26, page 415 of 411–418
^ Peiros, Ilia (1998) Comparative Linguistics in Southeast Asia (Pacific Linguistics. Series C-142)[2], Canberra: Pacific Linguistics, Research School of Pacific and Asian Studies, The Australian National University, →ISBN, page 249
^ Haswell, J. M. (1874) Grammatical Notes and Vocabulary of the Peguan Language[3], Rangoon: American Mission Press, page 103
