The construction and trial of a students' manual for environmental science using child-centered techniques

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Manu Kitchalong The construction and trial of a students' manual for environmental science using child-centered techniques. Thesis (M.Sc. (Appropriate Technology for Resources Development))--Mahidol University, 2002. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/104327

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