APA Style

Purwanto, Erwan Agus, Sulistyastuti, Dyah Ratih. (). . : .

Chicago Style

Purwanto, Erwan Agus, Sulistyastuti, Dyah Ratih. . : , . .

MLA Style

Purwanto, Erwan Agus, Sulistyastuti, Dyah Ratih. . : , . .

Turabian Style

Purwanto, Erwan Agus, Sulistyastuti, Dyah Ratih. . : , . .