Jabbar, Muhammad Abdul
University of Malaya Press, 1981
Buku Teks
Norwich, John Julius, editor
Oxford University Press, 1990
Buku Referensi
Korean Overseas Information Service, [date of publication not identified]
Buku Teks
Archipelago Press, 1998
Buku Teks
Markham May
McGraw-Hill, 2011
Buku Teks