Stevens, Lee A., author
Wadsworth, 1970
Buku Teks
Hoffer, Alan R., author
Prindle, Weber & Schmidt, 1969
Buku Teks
Drooyan, Irving, author
John Wiley & Sons, 1981
Buku Teks
Drooyan, Irving, author
John Wiley & Sons, 1976
Buku Teks
Barnett, Raymond A., author
McGraw-Hill, 1968
Buku Teks