Dang, T. H., T. B. D. Tran, T. D. Nguyen, T. Y. Mai, and T. T. Co. “Current Knowledge of Insulin Self-Injection in Patients With Type 2 Diabetes Managed by Nam Dinh General Hospital”. Journal of Nursing Science, vol. 3, no. 5, Nov. 2020, pp. 263-72, https://jns.vn/index.php/journal/article/view/300.