Morgan, David
International Engineering Consortium, 2007
eBooks
Shah, Vishu
John Wiley & Sons, 1998
Buku Referensi
Morgan, David
Peter Peregrinus, 1996
Buku Referensi
Parry, Vivienne
Pan Book, 1993
Buku Referensi
Shah, Vishu
New York : Jhon Wiley, 1998,
Buku Referensi