APA Style

Sonawan, Hery, Suratman, Rochim. (). . : .

Chicago Style

Sonawan, Hery, Suratman, Rochim. . : , . .

MLA Style

Sonawan, Hery, Suratman, Rochim. . : , . .

Turabian Style

Sonawan, Hery, Suratman, Rochim. . : , . .