KNIGHT, J. F. (1989). Usahakan Jantung Sehat. Indonesia Publishing House.
Chicago Style CitationKNIGHT, John F. Usahakan Jantung Sehat. Indonesia Publishing House, 1989.
MLA CitationKNIGHT, John F. Usahakan Jantung Sehat. Indonesia Publishing House, 1989.
Warning: These citations may not always be 100% accurate.