Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1975
Buku Teks
Costgantino, Cathy A., author
Jossey-Bass , 1996
Buku Teks
Costantino, Cathy A.
Jossey-Bass, 1996
Buku Teks
Peterson, Rein
John Wiley & Sons, 1979
Buku Teks
Peterson, Rein
John Wiley & Sons, 1979
Buku Teks