Holme, David J.
John Wiley & Sons, 1994
Buku Teks
Holme, David J.
Longman Scientific & Technical, 1993
Buku Teks
Lembaga Penelitian Universitas Brawijaya, {s.a.}
Majalah, Jurnal, Buletin
Thomas G.M. Schalkhammer, editor
Birkhauser, 2002
Buku Teks
Purdy, William C.
McGraw-Hill, 1965
Buku Teks