P. Kulkarni, V., L. S. Kumar, and L. V. Reddi Naidu. “Smart Phone Use and Sleep Disturbances, Depression and Anxiety in Adolescents”. Public Health Review: International Journal of Public Health Research, Vol. 6, no. 2, Apr. 2019, pp. 61-67, doi:10.17511/ijphr.2019.i2.03.