Adler, Matthew D., author
Oxford University Press, 2012
Buku Teks
McGraw-Hill, 2004
Multimedia
Bagus Takwin, author
Fakultas Psikologi Universitas Indonesia, 2012
Artikel Jurnal
Naqvi, Syed Nawab Haider, author
Islamic Foundation, 2003
Buku Teks
edited by Cindy Croft
Apple Academic Press, 2015
Buku Teks