Gaya APA

Prasojo, S, L. ([s.a.]). Kimia organik i (jilid 1) . Yogyakarta: [s.n.].

Gaya MLA

Prasojo, Stefanus, Layli. "Kimia organik i (jilid 1)". Yogyakarta: [s.n.], [s.a.]. Text Non-Fiction.