Smith, Anthony D.
Longman, 1976
Buku Teks
Yoshimichi Sato
Trans Pacific Press, 2006
Buku Teks
Zaltman, Gerald
Robert E. Krieger Publ., 1983
Buku Teks
Martin, Brian
Freedom Press, 1993
Buku Teks
Moore, Wilbert E. (Wilbert Ellis)
Prentice-Hall, 1963
Buku Teks