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2Jing mao chu ji Han yu kou yu = Business Chinese (Elementary) /经贸初级汉语口语 = Business Chinese (Elementary) /Bằng Huang, Weizhi
Được phát hành 1999Sách -
3Jing mao chu ji Han yu kou yu = Business Chinese (Elementary) /经贸初级汉语口语 = Business Chinese (Elementary) /Bằng Huang, Weizhi
Được phát hành 1993Sách -
4Shang wu Han yu ru men. Gateway to business Chinese. Regular formulas and etiquette /商务汉语入门. Gateway to business Chinese. Regular formulas and etiquette /Được phát hành 2005Sách