Srinayanti, Y., A. Abdul Malik, and Y. Diaz Lutfi Sandi. “Cold Compress Therapy Against Muscle Stiffness in Patients With Hypokalemia”. Genius Journal, vol. 2, no. 1, July 2021, pp. 16-21, https://genius.inspira.or.id/index.php/gj/article/view/15.