Rajshree Ramesh Gaikwad, Abhijit Diliprao Diwate, Arijit Kumar Das, and Nidhi Ahya. “Comparative Study of Self-Demonstration Versus Video Based Education on Level of Anxiety and Self-Efficacy in Patient Undergoing Cardiac Surgery: A Double-Blinded Randomized Controlled Trial”. Indian Journal of Public Health Research & Development, vol. 12, no. 3, May 2021, pp. 163-9, doi:10.37506/ijphrd.v12i3.16060.