Gaya APA
Drucker, P, F. (1992).
(PASCA - MANAJEMEN - ADMINISTRASI BISNIS) Managing The Non - Profit Organization (Edisi 1).
USA:
Harper Business.
Gaya MLA
Drucker, Peter, F..
"(PASCA - MANAJEMEN - ADMINISTRASI BISNIS) Managing The Non - Profit Organization".
Edisi 1
USA:
Harper Business,
1992.
.