Rangkuti - Hasibuan, s. (2001). English for spesific puspose: Medicine sofia rangkuti. Djambatan.
Cita Chicago (17th ed.)Rangkuti - Hasibuan, sofia. English for Spesific Puspose: Medicine Sofia Rangkuti. Djambatan, 2001.
Cita MLA (9th ed.)Rangkuti - Hasibuan, sofia. English for Spesific Puspose: Medicine Sofia Rangkuti. Djambatan, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.