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  1. 1

    Guide to extension training. 由 Bradfield, D. J.

    出版 1966
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  2. 2

    Production technicians' job performance, knowledge of and attitude towards the National Multiple Cropping Production Program in three selected provinces of the Philippines 由 Lapitan, Julian Alviar 1950-

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  3. 3

    Experience with the monitoring and evaluation and visit extension in India 由 Feder, Gershon 1947-

    出版 1983
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  4. 4

    The effects of extension and technical knowledge on farmer productivity in Nueva Ecija, Philippines [microform] 由 Castillo, Linda Lao

    出版 1980
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  5. 5

    Communication linking roles of the Barangay Development Leaders (BDL) in the IRAD project area [microform] 由 Azucena, Remedios I.

    出版 1982
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