Syifak, S. et al. 2026. Sleep Quality of Patient Hypertension with Obstructive Sleep Apnea (OSA) in the Elderly. Viva Medika: Jurnal Kesehatan, Kebidanan dan Keperawatan. 19, 2 (Jul. 2026), 135–143. DOI:https://doi.org/10.35960/vm.v19i2.2071.