Dunlap, Peter T., author
Routledge; Taylor & Francis Group, 2008
Buku Teks
Cavatorta, Francisco, author
Oxford University Press, 2016
eBooks
Qardawi, Yusuf, author
ISESCO, 1997
Buku Teks
Aldine Publishing, 1970
Buku Teks
Anderson, Walter Truett
Addison-Wesley, 1983
Buku Teks