龚勋. (2012). 感恩老师: Teachers' guidance and help will benefit us all our life. 汕头大学出版社.
Chicago-viite (17. p.)龚勋. 感恩老师: Teachers' Guidance and Help Will Benefit Us All Our Life. 汕头大学出版社, 2012.
MLA-viite (8. p.)龚勋. 感恩老师: Teachers' Guidance and Help Will Benefit Us All Our Life. 汕头大学出版社, 2012.
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