Gaya APA
Umar, H.
(2001).
Strategic Managemnet in Action
(
Cet.ke-1)
.
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Umar, Husein.
"Strategic Managemnet in Action".
Cet.ke-1
Jakarta:
Gramedia Pustaka Utama,
2001.
Textbook.