Hankin, E. H. (1920). "The comparative invisibility of Papilio demoleus during flight". In Fletcher, T. Bainbrigge (ed.). Report of the Proceedings of the Third Entomological Meeting held at Pusa on the 3rd to 15th February 1919. Volume 3. Calcutta: Government of India. pp. 900–903.
English, Horace B. (1927). "Review of Common Sense and Its Cultivation". Psychological Bulletin. 24 (4): 245–247. doi:10.1037/h0069358.
Conklin, Edmund S. (1929). "[Review] The Cave Man's Legacy by E. Hanbury Hankin". The American Journal of Psychology. 41 (2): 320. doi:10.2307/1415259. JSTOR1415259.
Conklin, Edmund S. (1929). "[Review] The Cave Man's Legacy by E. Hanbury Hankin". The American Journal of Psychology. 41 (2): 320. doi:10.2307/1415259. JSTOR1415259.