A Dictionary of the 3,500 Most Frequently Used Chinese Characters: Their Romanized Transcription in Hanyu Pinyi,. with English Meaning Definition, and Their Stroke Order. A Reference Manual Muhammad Wolfgang G. A. Schmidt E-Book (pdf)

A Learner's Chinese-English Dictionary. Covering the Entire Vocabulary for all the Six Levels of the Chinese Language Proficiency Exam Muhammad Wolfgang G. A. Schmidt E-Book (pdf)

Ancient Chinese Medical Texts On Acupuncture For Western Readers Muhammad Wolfgang G. A. Schmidt E-Book (pdf)