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== Referensi ==
{{reflist}}
{{Citation
| first = A.R | last = Soehoed
| author-link = A.R Soehoed
| title = Sejarah Pengembangan Pertambangan PT Freeport Indonesia
| place = Jakarta
| year = 2002 }}
{{Citation
| first = George | last = Mealey
| author-link = George Mealey
| title = Grasberg, Mining the richest and most remote deposit of copper and gold in the world, in the mountains of Irian Jaya, Indonesia
| place = Indonesia
| publisher = Freeport McMoRan Copper & Gold Inc.
| year = 1996
| isbn = 0965289001 }}
{{Citation
| first = Forbes | last = Wilson
| author-link = Forbes Wilson
| title = The Conquest of Copper Mountain, A Vivid, Personal Account of the Discovery and Development of Spectacular Outcrop of Ore in the Remote Peaks of
Irian Jaya, Indonesia
| place = New York
| publisher = McClelland and Stewart Ltd.
| year = 1981
| isbn = 0689111533 }}
== Pranala luar ==
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