Hadi, F., and M. Ibrar. “Grass Diversity in the Historical Kalash Valley, District Chitral, Hindukush Range, Pakistan”. Biological Sciences - PJSIR, vol. 60, no. 2, Aug. 2017, pp. 59-64, doi:10.52763/PJSIR.BIOL.SCI.60.2.2017.59.64.