APA Style

Suhirno, Dody, Purwanto, Didik. (). . : .

Chicago Style

Suhirno, Dody, Purwanto, Didik. . : , . .

MLA Style

Suhirno, Dody, Purwanto, Didik. . : , . .

Turabian Style

Suhirno, Dody, Purwanto, Didik. . : , . .