Gaultney, Jane F.
Thomson, 2007
Buku Teks
Grundy, Peter F., author
Edward Arnold, 1995
Buku Teks
Lance, Algie L., author
McGraw-Hill, 1966
Buku Teks
Cetinkunt,Sabri, author
Wiley , 2015
Buku Teks
Barr, Stephen, author
Thomas Y. Crowel, 1964
Buku Teks