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  1. 1

    An estimated economic contribution of schooling and extension in Korean agriculture Ki-Yong Hong [microform]. 由 Hong, Ki-Yong 1942-

    出版 1978
    Visual Material

    An estimated economic contribution of schooling and extension in Korean agriculture Ki-Yong Hong [microform].
  2. 2

    An estimated contribution of schooling and extension in Korean agriculture 由 Hong, Ki-Yong 1942-

    图书

    An estimated contribution of schooling and extension in Korean agriculture

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