Columbia subject headings:
Northern Thai language--China--Lungming--Lexicology.
Northern Thai language--Dialects--China--Lungming.
Northern Thai language--Dialects--Glossaries, vocabularies, etc.
Northern Thai language--Dialects--Texts.
Harvard subject headings:
Northern Thai languages--Dialects--Texts.
Southeast Asia--Languages--Variation.
Thai language--Dialects--China--Lungming.
Thai language--Dictionaries--English.
Princeton subject headings:
Southeast Asia--Languages--Variations.
Tai languages--Glossaries, vocabularies, etc.