Рударство — разлика између измена
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Ред 53:
* [http://media.wiley.com/product_data/excerpt/11/04713485/0471348511.pdf First chapter] of [https://books.google.com/books?id=gi2sfYQIqPgC&dq Introductory Mining Engineering]
* [http://rmmlf.org/SciTech/Lacy/Introduction-to-Geology-and-Hard-Rock-Mining-2015.pdf An introduction to geology and hard rock mining][https://web.archive.org/web/20160813182207/http://rmmlf.org/SciTech/Lacy/Introduction-to-Geology-and-Hard-Rock-Mining-2015.pdf (archive)]
* [https://web.archive.org/web/20140416174719/http://www.shibangmachines.com/news/role-of-construction-and-mining-sector-in-economy-for-the-year-2013_779.html Role of Construction and Mining Sector in Economy for the year 2013]
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