Tupkary, R.H.
Introduction to modern steelmaking
Khana , 1980
 Buku Teks
Graff, Heinz
Iron Smelting and Steelmaking
Edition Leipzig, 1973
 Buku Teks
Tidman, Paul
Logic and philosophy : a modern introduction
Wadsworth, 1999
 Buku Teks
Chowdhury, G.G.
Introduction to modern information retrieval
Facet Publishing , 2004, 2006
 Buku Teks
Faissler, William L.
An introduction to modern electronics
John Wiley & Sons, 1991
 Buku Teks