Torbert, Shane, author

Springer, 2012

 eBooks

Mutreja, K.N.

Tata McGraw-Hill, 1994

 Buku Teks

Kroenke, David M., 1946-, author

Mitchell Publishing, 1987

 Buku Teks

Chatelin, Francoise, author

Academic Press, 1983

 Buku Teks

Miltiadis D. Lytras, John M. Carroll, Ernesto Damiani, Robert D. Tennyson, David Avison, Gottfried Vosesen, Patricia Ordenez De Pablos, Patricia Ordonez, editor

Springer, 2008

 Buku Teks