Squire, Jessie E., author
Mosby, 1973
Buku Teks
Ryan, Barry W., author
McGraw-Hill, 1982
Buku Teks
Kazmier, Leonard J., author
McGraw-Hill, 1984
Buku Teks
John Wiley and Sons, Inc., 1967
Buku Teks
Hoel, Paul Gerhard, 1905-, author
Wiley, 1982
Buku Teks