Kwee, John B.
Hodder & Stoughton , 1976
Buku Teks
Liaw, Yock Fang, 1936-, author
Times Books International, 2001
Buku Teks
Genzel, Rhona B.
Heinle & Heinle Pub, , 1993
Buku Teks
McCarthy, Michael, author
Cambridge, 2006
Buku Teks
Bragger, Jeannette D.
Heinle & Heinle Pub, 1992
Buku Teks