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Chi-fen และผู้แต่งคนอื่นๆ. (2008) Syntactic and semantic analysis of Mandarin Chinese preposition "GEI" and its teaching applications . Chulalongkorn University/Bangkok.
Chi-fen และผู้แต่งคนอื่นๆ. Syntactic and semantic analysis of Mandarin Chinese preposition "GEI" and its teaching applications. . Bangkok:Chulalongkorn University, 2008.
Chi-fen และผู้แต่งคนอื่นๆ. (2008) Syntactic and semantic analysis of Mandarin Chinese preposition "GEI" and its teaching applications . Chulalongkorn University/Bangkok.