Stepanchev, Stephen, author
Harper and Row, 1965
Buku Teks
Sri Murniati, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1998
UI - Tesis (Membership)
Hilfer, Tony, author
Longman, 1992
Buku Teks
edited by Nona Balakian and Charles Simmons
Doubleday, 1963
Buku Teks
Matthiessen, F.O., author
Oxford University Press, 1941
Buku Teks