Shilpi, Gupta, Singh Shilpi, and Sunita Sharma. 2015. “TOLERANCE AGAINST HEAVY METAL TOXICITY IN CYANOBACTERIA: ROLE OF ANTIOXIDANT DEFENSE SYSTEM”. International Journal of Pharmacy and Pharmaceutical Sciences 7 (2):9-16. https://journals.innovareacademics.in/index.php/ijpps/article/view/3373.