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  1. 1

    Costs and returns in black pepper production, Batangas, 1985 af Tanyag, Emeteria G.

    Udgivet 1986
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    Costs and returns in black pepper production, Batangas, 1985
  2. 2

    Off-farm and non-farm income sources of corn farmers, 1984 af Tanyag, Emeteria G.

    Udgivet 1985
    Bog

    Off-farm and non-farm income sources of corn farmers, 1984

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