APA Style

Riyanto, Sugeng, Abbas, Novida. (). . : .

Chicago Style

Riyanto, Sugeng, Abbas, Novida. . : , . .

MLA Style

Riyanto, Sugeng, Abbas, Novida. . : , . .

Turabian Style

Riyanto, Sugeng, Abbas, Novida. . : , . .