DJVU Luce, G.H. undated, "Mon-Khmer “Similarities” by isoglosses only", in Luce Collection, MS 6574-7, pp. 073a-074b. National Library of Australia. cite.

DJVU Luce, G.H. undated, "Mon-Khasi isoglosses", in Luce Collection, MS 6574-7, pp. 004a-004b. National Library of Australia. cite.

DJVU Luce, G.H. undated, "Lexical differences/commonalities between MK languages by glosses", in Luce Collection, MS 6574-7, pp. 005a-019. National Library of Australia. cite.