Japan. Chūgoku Keizai Sangyōkyoku

• Chūgoku chiiki ni okeru kokusanzai, rinchi zanzai, kanbatsuzai tō no ri-katsuyō hōsaku no kentō chōsa hōkokusho
• Chūgoku chiiki ni okeru konbināto no potensharu o katsuyōshita suiso infura seibi to kinōsei sozai katsuyō hōsaku chōsa hōkokusho
• Chūgoku chiiki ni okeru mizu kankyō shūfuku gijutsu no kokunaigai tenkai hōsaku chōsa hōkokusho
• Chūgoku chiiki ni okeru suiso enerugī shakai keisei no tame no chiiki moderu jigyō tō hōsaku chōsa hōkokusho
• Heisei 18-nendo "3R shisutemu-ka kanōsei chōsa jigyō" mekki suisensui kara no yakuzai tō yūkabutsu kaishū shisutemu no kōchiku, hōkokusho