- EbookChinese PrimerTa-tuan Ch'en
- EbookChinese PrimerTa-tuan Ch'en
- EbookChinese PrimerTa-tuan Ch'en
- EbookChinese PrimerTa-tuan Ch'en
- EbookChinese Primer, Volumes 1-3 (Pinyin)Ta-tuan Ch'en
- EbookSeries: The Princeton Language ProgramTa-tuan Ch'en
- EbookChinese Primer, Volumes 1-3 (GR)Ta-tuan Ch'en
- EbookSeries: The Princeton Language ProgramTa-tuan Ch'en