Nokham , Ranchana, Chutamat Kitisri, Punnee Chaiwong, Kannika Unuai, and Nongyao Mongkhonittivech. “Outcomes of the Care System for Older People With Chronic Disease by Volunteer Process”. Nursing Journal CMU 47, no. 1 (March 25, 2020): 268–279. Accessed May 5, 2024. https://he02.tci-thaijo.org/index.php/cmunursing/article/view/240754.