Bull, E., & Archard, G. (2007). Nyeri punggung. Erlangga.
Chicago Style (17th ed.) CitationBull, Eleanor, and Graham Archard. Nyeri Punggung. Erlangga, 2007.
MLA (8th ed.) CitationBull, Eleanor, and Graham Archard. Nyeri Punggung. Erlangga, 2007.
Warning: These citations may not always be 100% accurate.