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Sakaguchi และผู้แต่งคนอื่นๆ. (2008) Secondary school socials studies curriculum comparison for mutual understanding : cases of Thailand and Singapore . Chulalongkorn University/Bangkok.
Sakaguchi และผู้แต่งคนอื่นๆ. Secondary school socials studies curriculum comparison for mutual understanding : cases of Thailand and Singapore. . Bangkok:Chulalongkorn University, 2008.
Sakaguchi และผู้แต่งคนอื่นๆ. (2008) Secondary school socials studies curriculum comparison for mutual understanding : cases of Thailand and Singapore . Chulalongkorn University/Bangkok.