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Martin, R.A. (March 2007). “A review of shark agonistic displays: comparison of display features and implications for shark–human interactions”. 《Marine and Freshwater Behaviour and Physiology》 40 (1): 3–34. Bibcode:2007MFBP...40....3M. doi:10.1080/10236240601154872.
elasmodiver.com
Great Hammerhead. Elasmodiver.com. Retrieved on October 18, 2008.
Martin, R.A. (March 2007). “A review of shark agonistic displays: comparison of display features and implications for shark–human interactions”. 《Marine and Freshwater Behaviour and Physiology》 40 (1): 3–34. Bibcode:2007MFBP...40....3M. doi:10.1080/10236240601154872.