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Geochemistry Of Selected Coal Samples From Sumatra

Geochemistry Of Selected Coal Samples From Sumatra

Coal mining in Indonesia has had a long history beginning with the initial production in 1849 in the Mahakam coal field near Pengaron East Kalimantan in 1891 in the Ombilin area Sumatra van Leeuwen 1994 and in South Sumatra in 1919 at the Bukit Asam mine Soehandojo 1989.Total production from deposits in Sumatra and Kalimantan from the 19th century to World War II

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