Danien, Elin C.; Robert J. Sharer (1993), New theories on the ancient Maya, University of Pennsylvania. University Museum of Archaeology and Anthropology, UPenn Museum of Archaeology, p. 99.
Djafarova, Elmira (June 2008). "Why Do Advertisers Use Puns? A Linguistic Perspective". Journal of Advertising Research. 48 (2): 267–275. doi:10.2501/s0021849908080306. S2CID167457581.
van Mulken, Margot; Renske van Enschot-van Dijk; Hans Hoeken (May 2005). "Puns, relevance and appreciation in advertisements". Journal of Pragmatics. 37 (5): 707–721. CiteSeerX10.1.1.946.7625. doi:10.1016/j.pragma.2004.09.008.
Although Zimmer was not able to trace it to its source, the Jamaica joke originated in American college boy humour: "(No headline)". The Yale Record. Vol. XL, no. 15. 2 June 1912. p. 447. Retrieved 23 April 2023.; "In Lighter Vein". The Brown Alumni Monthly. Vol. XIII, no. 4. November 1912. p. 111. Retrieved 28 April 2023.; "Commuting". The Graduate/University of California Medical Center. 1914. p. 88. Retrieved 28 April 2023.
van Mulken, Margot; Renske van Enschot-van Dijk; Hans Hoeken (May 2005). "Puns, relevance and appreciation in advertisements". Journal of Pragmatics. 37 (5): 707–721. CiteSeerX10.1.1.946.7625. doi:10.1016/j.pragma.2004.09.008.
Djafarova, Elmira (June 2008). "Why Do Advertisers Use Puns? A Linguistic Perspective". Journal of Advertising Research. 48 (2): 267–275. doi:10.2501/s0021849908080306. S2CID167457581.