Tyagi, S. K., N. Khan, A. K. Kaushik, and S. Choudhary. “EFFECT OF ELECTROMAGNETIC RADIATION ON HUMAN BODY (BY CELL PHONES)”. International Journal of Advanced Science and Technology, Vol. 28, no. 7, Sept. 2019, pp. 451 -54, http://sersc.org/journals/index.php/IJAST/article/view/459.