Chusnul Mar`iyah
1998
Artikel Jurnal
Kaiser, Edward John
Buku Teks
Kaiser, Edward John
University of Illinois Press, 1995
Buku Teks SO
edited by Gerald E. Caiden and Heinrich Siedentopf
LexingtonBooks, 1982
Buku Teks
Marsh, William M.
McGraw-Hill, 1978
Buku Teks SO