![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Strien, N.J. van, 1978. On the difference in the footprints in the Javan and Sumatran rhinoceros. Tiger Paper 5 (1): 16-19, figs. 1-2
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![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Strien, N.J. van, 1977. Final report on the 1977 fieldwork, tenth Mamas expedition. Progress Report, no. 7, pp. 1-6
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![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Strien, N.J. van, 1976. Fourth, fifth and sixth Mamas expedition, January - July 1976. Progress Report, no. 4, pp. 1-6
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![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Strien, N.J. van, 1976. Sumatran rhinoceros international conservation programme, project 884. WWF Yearbook 1975-1976: 124-126
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