Gaya APA

Publication Manual of the American Psychological Association fifth edition. (2001). : .

Gaya Chicago

Publication Manual of the American Psychological Association fifth edition. . : , 2001. Text Books.

Gaya MLA

Publication Manual of the American Psychological Association fifth edition. . : , 2001. Text Books.

Gaya Turabian

Publication Manual of the American Psychological Association fifth edition. : , 2001. Text Books.