BULLOCK, Richard L. a Scott MERNITZ, ed. Mineral property evaluation: handbook for feasibility studies and due diligence. Englewood, Colorado: Society for Mining, Metallurgy & Exploration, [2018]. ISBN 978-0-87335-445-5 .
EUROPEAN COMMISSION. EU principles for sustainable raw materials.Luxembourg : Publications Office of the European Union, [2021].ISBN 978-9-27642-145-0 .
EUROPEAN COMMISSION. European innovation partnership on raw materials : annual monitoring report 2020.Luxembourg : Publications Office of the European Union, [2021].ISBN 978-9-27645-212-6 .
RUNGE, Ian Charles. Mining economics and strategy. Littleton: Society for Mining, Metallurgy, and Exploration, c1998. ISBN 0-87335-165-7.