Qiu, Tian, author
Foreign Language Press, 2007
Buku Teks
editor, Soleh Kosela ... [and others]
Universitas Indonesia, 2001
Buku Teks
Jackson, Nora, author
Pergamon Press, 1969
Buku Referensi
Kahn, James R., author
Thomson, 2005
Buku Teks
Kreps, Juanita M., author
Wilson, 1955
Buku Teks