Profile of kyushu Greater Incorporated Associations Kyushu Economic Federation, (Inggeris)
ukm.my
Sakamoto, Hiroshi. (2011). "Analisis CGE pada Dasar Serantau di Kawasan Utara Kyushu."
Kitakyushu: The International Centre for the Study of East Asian Development (ICSEAD), (dalam bahasa Inggeris dan Melayu) Working Paper Series Jld. 2011-03