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DJVU PDF Hishida, T. 1973, "A Preliminary Study of the Bisu Language - a Language of Northeastern Thailand, Recently Discovered by Us", in Papers in Southeast Asian Linguistics No.3, ed. S.A. Wurm, vol. 3, pp. 55-82. Pacific Linguistics, the Australian National University. cite.

DJVU PDF Person, K.R. 2007, "A preliminary phonological sketch of Pyen, with comparison to Bisu", in SEALS XIII Papers from the 13th Annual Meeting of the Southeast Asian Linguistics Society 2003, ed. I. Shoichi et al., Canberra, Australia, pp. 193-201. Pacific Linguistics, Research School of Pacific and Asian Studies, The Australian National University. cite.

DJVU PDF Person, K.R. 2001, "Writing Bisu: a community-based approach to orthography development", in Papers from the Ninth Annual Meeting of the Southeast Asian Linguistics Society, ed. G.W. Thurgood, pp. 171-200. Arizona State University, Program for Southeast Asian Studies. cite.

DJVU PDF Xu, S. 1999, "Aspect and tense in the Bisu language", in Linguistics of the Tibeto-Burman Area, vol. 22, no. 2, pp. 183-197. cite.