Kolde, E.J
Lexington Books, 1974
Buku Teks
Rien T. Segers, editor
Springer International Publishing, 2016
eBooks
Dymsza, William A., author
McGraw-Hill, 1972
Buku Teks
Shapiro, Alan C.
John Wiley Sons, 1999
Buku Teks
Eitman, David K., author
Perason, 2001
Buku Teks