Rai, M., B. K. Kushwaha, and S. N. Srivastava. “The State of Scapania Ligulata Steph. (Scapaniaceae, Marchantiophyta) in Western Himalaya, India”. Plant Science Today, vol. 2, no. 4, Oct. 2015, pp. 197-02, doi:10.14719/pst.2015.2.4.141.