Scott Adams (21 Oct 2008). Dilbert 2.0: 20 Years of Dilbert. Andrews McMeel Publishing. hlm. 89. ISBN978-0740777356. Diakses tanggal 1 July 2021. .. I made all Elbonians look identical, even the women, with long black beards ...
doi.org
Hamlin, Kimberly A. (2011). "The "Case of a Bearded Woman": Hypertrichosis and the Construction of Gender in the Age of Darwin". American Quarterly (dalam bahasa Inggris). 63 (4): 955–981. doi:10.1353/aq.2011.0051. ISSN1080-6490.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
Trainor, Sean (2014). "Fair Bosom/Black Beard: Facial Hair, Gender Determination, and the Strange Career of Madame Clofullia, "Bearded Lady"". Early American Studies. 12 (3): 548–575. doi:10.1353/eam.2014.0019. ProQuest1553324492.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
Trainor, Sean (2014). "Fair Bosom/Black Beard: Facial Hair, Gender Determination, and the Strange Career of Madame Clofullia, "Bearded Lady"". Early American Studies. 12 (3): 548–575. doi:10.1353/eam.2014.0019. ProQuest1553324492.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)
Hamlin, Kimberly A. (2011). "The "Case of a Bearded Woman": Hypertrichosis and the Construction of Gender in the Age of Darwin". American Quarterly (dalam bahasa Inggris). 63 (4): 955–981. doi:10.1353/aq.2011.0051. ISSN1080-6490.Parameter |s2cid= yang tidak diketahui akan diabaikan (bantuan)