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  1. 1
    Economic analysis of resource conservation and household preferences attributes in Hadejia-Nguru Wetlands, Nigeria
    由 Adamu, Abdullahi
    出版 2017
    主题: “...Conservation of natural resources - Economic aspects - Nigeria...”
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  2. 2
    Economic valuation of wildlife-based ecotourism resources in Yankari Game Reserve, Bauchi State Nigeria
    由 Adamu, Abdullahi
    出版 2015
    主题: “...Wildlife-related recreation industry - Economic aspects - Nigeria...”
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