Huffman, Karen
Psychology in action
John Wiley & Sons, 1997
 Buku Teks SO
Hartman, Philip E.
Gene action
Prentice Hall of India Private Limited, 1972
 Buku Referensi
Learned, Edmund P. (Edmund Philip), 1900-1991
Executive action
Harvard University Press, 1951
 Buku Teks
Organization in action
Beneficial Management Institute, [Date of publication not identified]
 Buku Teks
Learned, Edmund P. (Edmund Philip), 1900-1991
Executive action
Andover Press, 1957
 Buku Teks SO