Rangkuti - Hasibuan, s. (2001). English for spesific puspose: Medicine sofia rangkuti. Djambatan.
Chicago Style (17th ed.) CitationRangkuti - Hasibuan, sofia. English for Spesific Puspose: Medicine Sofia Rangkuti. Djambatan, 2001.
MLA引文Rangkuti - Hasibuan, sofia. English for Spesific Puspose: Medicine Sofia Rangkuti. Djambatan, 2001.
警告：這些引文格式不一定是100％准確.