Marting, Elizabeth, author
American Management Association, 1959
Buku Teks
Haynes, W. Warren (William Warren), 1921-1972, author
Prentice-Hall, 1961
Buku Teks
Alford, Leon Pratt, author
Ronald Press, 1951
Buku Teks
Alford, Leon Pratt, author
Ronald Press, 1940
Buku Teks
Dale, Ernest, author
McGraw-Hill Kogakusha, 1973
Buku Teks