Thakur, M., G. Mishra, S. Nayaka, and H. Chander. “An Assessment of Lichens Diversity from Mandi District, Himachal Pradesh, India”. INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT, Vol. 6, no. 04, Dec. 2020, pp. 277-82, doi:10.18811/ijpen.v6i04.06.