Corley, Robert Neil, author
McGraw-Hill, 1968
Buku Teks
Corley, Robert Neil, author
McGraw-Hill, 1987
Buku Teks
Newman, Philip C.
Frederick A. Praeger, Inc , 1956
Buku Teks
Trebilcock, Michael, author
Rotledge, 2013
Buku Teks
Corley, Robert Neil
McGraw-Hill , 1981
Buku Teks