APA Style
Syed, O, S, A.
(1994).
Umar al Khattab: how did he manage success?
(
Cet 1)
.
Jakarta:
Gema Insani Press.
MLA Style
Syed, Omar, Syed, Agil,.
"Umar al Khattab: how did he manage success?".
Cet 1
Jakarta:
Gema Insani Press,
1994.
Text.