Sovian Aritonang, author
Analysis of the process of iron sand processing into sponge iron in order to support the defense industry of steel raw materials
Indonesia Defense University, 2019
 Artikel Jurnal
Hosford, William F., author
Iron and steel
Cambridge University Press , 2012
 Buku Teks
Pounds, Norman J. G., author
The geography of iron and steel
Hutchinson University Library, 1969
 Buku Teks
Ocean and coastal law : cases and materials
by Alison Rieser ... [and others]
West Academic Publishing, 2013
 Buku Teks
Skelton, H.J., author
Economics of iron & steel : being an exposition of every-day practice in the heavy iron and steel trades
London, H.J.Skelton
 Buku Teks
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