Aamodt, Michael G., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Mullen, James X., author
Tian xia wen hua chu ban gu fen you xian gong si, 1997
Buku Teks
Blum, Milton L., author
Harper & Brothers , 1956
Buku Teks
Ghiselli, Edwin E., author
McGraw-Hill, 1955
Buku Teks
Haire, Mason, author
McGraw-Hill, 1964
Buku Teks