Plummer, Charles C.
McGraw-Hill, 2013
Buku Teks
Plummer, Charles C.
WBC, 1991
Buku Teks
Longwell, Chester R.
John Wiley & Sons, 1969
Buku Teks
edited by D. Poche, C.M. Woolheater
Burgess, 1967
Buku Teks
Hamblin, W. Kenneth (William Kenneth), 1928-
Burgen Publishing, 1967
Buku Teks