Gaya APA
Higher Institution and Learning Management System. (2012).
:
.
Gaya Chicago
Higher Institution and Learning Management System.
.
:
,
2012.
Textbook.
Gaya MLA
Higher Institution and Learning Management System.
.
:
,
2012.
Textbook.
Gaya Turabian
Higher Institution and Learning Management System.
:
,
2012.
Textbook.