Tarigan, Putri Karina, Widya Santi Manggalika, Wirna Wati Halawa, Selvi Sri Ica Purwasih Zega, Andros Christopher Samosir, and Elis Anggeria. “THE EFFECT OF SLEEP HYGIENE ON INSOMNIA IN DIABETES MELLITUS PATIENTS AT ROYAL PRIMA HOSPITAL MEDAN 2024”. Nurse and Holistic Care 5, no. 1 (April 30, 2025): 50–60. Accessed July 28, 2026. https://journal2.unusa.ac.id/index.php/nhc/article/view/7167.