Gaya APA
Peitchenis, S, G.
(1985).
Issues In Management Labaur In The 1990
.
Hongkong:
Machmillan Education.
Gaya MLA
Peitchenis, Stephen, G..
"Issues In Management Labaur In The 1990".
Hongkong:
Machmillan Education,
1985.
Buku Referensi.