Gaya APA
David, F, R., David, F, R. (2015).
Stategic Management Ed. 15 (Fifteenth edition).
United States of America:
Pearson Education.
Gaya MLA
David, Fred, R.., David, Forest, R..
"Stategic Management Ed. 15".
Fifteenth edition
United States of America:
Pearson Education,
2015.
Textbook.