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2. Center for Curriculum, National Institute for Educational Policy Research. 2014. Kankyōkyōiku shidō shiryō (Yōchien/Shōgakkō hen) (References for teaching environmental education (Kindergarten/Elementary school edition). Tokyo: Tōyōkan Shuppansya (Toyokan Publishing Co. Ltd.).
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4. Inamori, M. and Ogiwara, A. 2009. Kankyōkyōiku ni okeru shōgakkō/shimindantai kan no renkei ni tsuite: Mondaiten to zizokuteki renkei no jōken oyobi kōkateki renkei no tame no teigen (Cooperation between elementary schools and citizen groups in environmental education: Problems, conditions for long-lasting cooperation, and suggestions for effective cooperation). Kankyōkyōiku (Environmental Education). 19(2):47-57.
5. Kodama, T. 2015. Gakkō ESD zissen ni okeru “Nōryokuikuseiron” no kōsatsu (Discussion of “Ability upbringing theory” in the school ESD practice). Kankyōkyōiku (Environmental Education). 25(1):132-143.