Lectures-Chinese-1981 (中文講座)
Lectures-Chinese-1982 (中文講座)
Lectures-Chinese-1988 (中文講座)
Lectures-Chinese-1999 (中文講座)
Q&A in Chinese-1981 (中文問答題)
Q&A in Chinese-1982 (中文問答題)
Q&A in Chinese-1988 (中文問答題)
Q&A in Chinese-1992 (中文問答題)
Q&A in Chinese-1993 (中文問答題)

Q&A in Chinese-1993 (中文問答題)

Q&A in Chinese - 01-12-1993 - Q1