9For People, the Earth and Coming Generations. International Environmental Cooperation in Kitakyushu [ Z ]. Kitakyushu : Office of International Environmental Cooperation of Kitakyushu, 2000.16.
10Mushtaq Ahmed Memon, Christine Pearson, and Hidefnmi Imura. Inter-city Environmental Cooperation: The case of the Kitakyushu Initiative for a Clean Environment[ A]. International Review for Environmental Strategies [ C ]. Kanagawa, Japan: Institute for Global Environmental Strategies ,2005. 534.
