by
Drucker, Peter F. author
Format:
Alıntı:
Management : Tasks, responsibilities, practices / Drucker, Peter F. author
by
Drucker, Peter F.. author
Format:
Alıntı:
Management challenges for the 21st century / Drucker, Peter F.. author
by
Drucker, Peter F.
Format:
Alıntı:
The New society : the anatomy of industrial order/ Drucker, Peter F.