Hansen, Alvin H. (Alvin Harvey), 1887-1975, author
MacGraw-Hill , 1947
Buku Teks
Grampp, William D.
Richard D. Irwin , 1953
Buku Teks
Schiller, Bradley R., author
Prentica-Hall , 1975
Buku Teks
Steiner, George A. (George Albert), 1912-, author
McGraw-Hill, 1953
Buku Teks
Haggerty, Patrick E., author
Columbia University Press, 1974
Buku Teks