No Inv.: 1526/P/Perp/92/1c
No Inv.: 5032-5036/P/Perp/92/5c
No Inv.: 1758/P/Perp/92/1c
Judul asli : "Managerial Breakthrough, a New Concept of the Manager`s Job"
No Inv.: 13480/P/Perp/94/1c
No Inv.: 14367/P/Perp/94/1c
No Inv.: 14462/P/Perp/94/1c~2543-2547/P/Perp/95/5c~622/P/Perp/97/1c
No Inv.: 3667/P/Perp/91/1c
No Inv.: 2531-2535/P/Perp/92/5c
No Inv.: 11265-11269/P/Perp/92/5c