Rigby, J.F. “The Significance of a Permian Flora from Irian Jaya (West New Guinea) Containing Elements Related to Coeval Floras of Gondwanaland and Cathaysialand”. Journal of Palaeosciences 45 (December 31, 1996): 295–302. Accessed April 29, 2024. https://jpsonline.co.in/index.php/jop/article/view/1247.