Gaya APA

SISTTEMS. (2007). JAKARTA: DEPENNAS.

Gaya Chicago

SISTTEMS. . JAKARTA: DEPENNAS, 2007. Text.

Gaya MLA

SISTTEMS. . JAKARTA: DEPENNAS, 2007. Text.

Gaya Turabian

SISTTEMS. JAKARTA: DEPENNAS, 2007. Print.