Martin, E.B. 1983. North Yemen bans the importation of rhino horn. Newsletter of the African Elephant and Rhino Group 1: 14, fig. 7.
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Martin, E.B. 1983. Rhino exploitation: the trade in rhino products in India, Indonesia, Malaysia, Burma, Japan & South Korea. Hong Kong, WWF Hong Kong. pp. 1-122.
Martin, E.B. 1983. Follow-up to stop trade in rhino products in Asia. Newsletter of the African Elephant and Rhino Group 1: 9-12, figs. 3-4, tables 1-4.
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Martin, E.B. 1982. Rhino trade study – Japan, South Korea, Indonesia, Malaysia and Burma. WWF Yearbook 1982: 294-301, figs. 1-2.
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Martin, E.B. 1982. Rhino trade study: Japan, South Korea, Indonesia, Malaysia and Burma (Project 1936).. WWF Yearbook 1982: 294-301, fig. 1.