Firstly, published on https://www.academia.edu/35353561/Peter_F.Drucker_Nazar%C4%B1ndan%C4%B0nsan_Kaynaklar%C4%B1_Y%C3%B6netimi
Firstly, published on https://www.academia.edu/35353561/Peter_F.Drucker_Nazar%C4%B1ndan%C4%B0nsan_Kaynaklar%C4%B1_Y%C3%B6netimi
