The Effectiveness of Foot Reflexology Massage in Improving Sleep Quality Among Elderly Patients with Diabetes Mellitus and Insomnia in Sumber Porong Village Lawang. Proceedings Optimal for Nation: Health and Medicine Proceedings, [S. l.], v. 1, n. 2, 2026. DOI: 10.5281/xkthrp90. Disponível em: https://proceedings.optimaluntuknegeri.com/index.php/Proceedings/article/view/49. Acesso em: 5 nov. 2026.