Leitmann, Josef, author
McGraw-Hill, 1999
Buku Teks
Steiner, Frederick R., author
John Wiley & Sons, 2006
Buku Referensi
Gallion, Arthur B., author
D. Van Nostrand, 1963
Buku Teks
Gallion, Arthur B., author
D. Van Nostrand, 1975
Buku Teks
Punter, John, author
UBC Press, 2003
Buku Teks