Karthik S, Muthukumar S., Hariharan G.N..  2021.  Insights into in vitro phenotypic plasticity, growth and secondary metabolites of the mycobiont isolated from the lichen Platygramme caesiopruinosa. Archives of Microbiology. 204

Muthukumar S, Karthik S, Hariharan GN.  2016.  Cryptogam Biodiversity and Assessment. Cryptogam Biodiversity and Assessment. 1(1):20.