Ruiz, A. (1986). An anthropometric study of the ear in an adult population. International Journal of Anthropology. 1 (2): 135—43. doi:10.1007/BF02447350.
Singh, P.; Purkait, R. (2009). Observations of external ear—an Indian study. HOMO: Journal of Comparative Human Biology. 60 (5): 461—472. doi:10.1016/j.jchb.2009.08.002. PMID19748090.
Singh, L. (1977). Hypertrichosis pinnae auris, Darwin's tubercle and palmaris longus among Khatris and Baniyas of Patiala, India. Acta Genet. Med. Gemellol. (Rome). 26 (1977): 183—184. doi:10.1017/S0001566000010011. PMID596117.
Singh, P.; Purkait, R. (2009). Observations of external ear—an Indian study. HOMO: Journal of Comparative Human Biology. 60 (5): 461—472. doi:10.1016/j.jchb.2009.08.002. PMID19748090.
Singh, L. (1977). Hypertrichosis pinnae auris, Darwin's tubercle and palmaris longus among Khatris and Baniyas of Patiala, India. Acta Genet. Med. Gemellol. (Rome). 26 (1977): 183—184. doi:10.1017/S0001566000010011. PMID596117.