Davis, Christine S., author
Routledge, Taylor & Francis Group, 2017
Buku Teks
Syamsul Hadi, author
FoDIS, 1997
Buku Teks
Reuss, Henry S., author
McGraw-Hill, 1964
Buku Teks
edited by Philip John Davies and Fredric A. Waldstein
Manchester University Press, 1987
Buku Teks
Sidik Jatmika, author
Bigraf Publishing, 2000
Buku Teks