APA Style

Tjahjono, Achmad, Mahagiyani. (). . : .

Chicago Style

Tjahjono, Achmad, Mahagiyani. . : , . .

MLA Style

Tjahjono, Achmad, Mahagiyani. . : , . .

Turabian Style

Tjahjono, Achmad, Mahagiyani. . : , . .