Devanti, N. R., and K. P. Utami. “The Effect of Giving Hatha Yoga Exercise on Increasing Sleep Quality in the Elderly in Karangkates Village”. JURNAL KEPERAWATAN DAN FISIOTERAPI (JKF), vol. 5, no. 1, Oct. 2022, pp. 61-66, doi:10.35451/jkf.v5i1.1226.