Jangpakdee, S., C. Prasertsong, and T. Kasiphol. “The Effects of Health Literacy Program on Covid-19 Prevention Behaviors Type 2 Diabetes Mellitus Patients”. Journal of The Royal Thai Army Nurses, vol. 23, no. 3, Jan. 2023, pp. 333-41, https://he01.tci-thaijo.org/index.php/JRTAN/article/view/259176.