Buku Teks
Kuala Lumpur : MBRAS (Malaysian Branch of the Royal Asiatic Society)
Majalah, Jurnal, Buletin
Ekelund, Robert B., Jr.
New York McGraw Hill 1997,
Buku Teks
Sengupta, Ramprasad
Boston Institute for economic development of the Boston University 1996,
Buku Teks
Inukai, Ichiro
Jepang IUJ-IDP Press 2003,
Buku Teks