Kumar De, Arnab, et al. “Azolla Pinnata R.Br.: A Reliable Fern Species to Demonstrate Satisfactory in-Vitro Anti-Oxidation under Herbicidal Toxicity”. Annals of Tropical Research, vol. 40, no. 1, May 2018, pp. 18-34, doi:10.32945/atr4012.2018.