Astuti, Dyah Dwi. “Sleep Positioning By Levine’s Conservation Theory Approach Can Optimize Enteral Nutrition In Low Birth Weight Infants”. Jurnal Ilmu Kesehatan 10, no. 1 (July 6, 2021): 33–41. Accessed July 3, 2024. https://e-journal.umc.ac.id/index.php/JIK/article/view/1970.