Gupta, V. J., Bisaria, P. C., Chadha, D. K., Mahajan, G., Kumar, S., Kashyap, S. R., … Virdi, N. S. (1970). Permian Fusulinids from the Himalayas. Journal of Geological Society of India, 11(4), 393–396. Retrieved from https://geosocindia.com/index.php/jgsi/article/view/61074