Steinbeck, John, 1902-1968
Dian Rakyat, 1991
Buku Teks SO
Zhang, Shengyou
Intercontinental Press, 2008
Buku Teks
Coote, Stephen
Penguin Group, 1988
Buku Teks SO
Waldo Eduard Bansaleng Bogar
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1992
UI - Skripsi Membership
Vance, Jack
Spatterlight Press, 2002
Buku Teks SO