DJVU PDF Marcos-Marin, F.A. 1992, "Typology of numerals: minority languages of China", in The Third International Symposium on Language and Linguistics, Bangkok, Thailand, pp. 756-763. Chulalongkorn University. cite.
DJVU PDF Zarbaliyev, H.M. 1992, "Austronesian numerals: omission of the operands and general tendencies of omission", in The Third International Symposium on Language and Linguistics, Bangkok, Thailand, pp. 833-840. Chulalongkorn University. cite.