Surange, K.R., and Prem Singh. “The Female Dwarf Shoot of Walkomiella Indica - A Conifer from the Lower Gondwanas of India”. Journal of Palaeosciences 2 (December 31, 1953): 5–8. Accessed June 16, 2024. https://jpsonline.co.in/index.php/jop/article/view/425.