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. Some new frogs from Sarawak. Amphibia-Reptilia. 1984;4(2):103 - 115. Available at: http://booksandjournals.brillonline.com/content/10.1163/156853883x00021.
. Frogs of the genus Leptobrachella (Pelobatidae). Amphibia-Reptilia. 1983;4(2):89 - 102. Available at: http://booksandjournals.brillonline.com/content/10.1163/156853883x00012.
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