Jafar, S. A., and P. Kapoor. “Late Maastrichtian-Danian Nannoplankton from Basal Subathu of Dharampur, Simla Himalaya, India-Palaeogeographic Implications”. Journal of Palaeosciences, vol. 37, no. (1-3), Dec. 1988, pp. 115-24, doi:10.54991/jop.1988.1605.