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Lua i Stíl Chicago (17ú heag.)Akper, Peter Terkaa. A Critical Analysis of the Legal and Institutional Framework for the Formalisation and Regulation of Artisanal Mining in Nigeria. 2015.
Lua MLA (9ú heag.)Akper, Peter Terkaa. A Critical Analysis of the Legal and Institutional Framework for the Formalisation and Regulation of Artisanal Mining in Nigeria. 2015.
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