Chandra, Shaila, and K.R. Surange. “Fertile Bracts and Scales of Glossopteris Fructifications from the Lower Gondwana of India”. Journal of Palaeosciences 24, no. 1-3 (December 31, 1975): 195–201. Accessed May 16, 2024. https://www.jpsonline.co.in/index.php/jop/article/view/985.