Pillai, S. S. K. “Cheirophyllum Maithyi Sp. Nov. From the Early Permian of Pench Valley Coalfield, Satpura Gondwana Basin, India”. Journal of Palaeosciences, vol. 61, no. (1-2), Dec. 2012, pp. 139-43, doi:10.54991/jop.2012.355.