Vijayan, Geethu, and P. Deepa. “Sleep Quality and Its Correlation With Glycosylated Hemoglobin Level Among Patients With Type 2 Diabetes Mellitus”. Innovational: Journal of Nursing and Healthcare, vol. 8, no. 2, Mar. 2024, pp. 13-17, doi:10.31690/ijnh.2022.v08i02.001.