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Burgess, E. A.; Lanyon, J. M.; Keeley, T (2012). “Testosterone and tusks: Maturation and seasonal reproductive patterns of live, free-ranging male dugongs (Dugong dugon) in a subtropical population”. 《Reproduction》 143 (5): 683–97. doi:10.1530/REP-11-0434. PMID22393027.
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