References
Peiros, Ilia (1998) Comparative Linguistics in Southeast Asia (Pacific Linguistics. Series C-142), Canberra: Pacific Linguistics, Research School of Pacific and Asian Studies, The Australian National University, →ISBN, page 254
Jenny, Mathias (2005) The verb system of Mon, University of Zurich, →DOI, →ISBN, page 32
Sujaritlak Deepadung (1996) “Mon at Nong Duu, Lamphun Province”, in Mon-Khmer Studies, volume 26, page 415
Haswell, J. M. (1874) Grammatical Notes and Vocabulary of the Peguan Language, Rangoon: American Mission Press, page 70