WONGPATIKASEREE, K., P. YOMABOOT, N. Noohom, S. YUENYONG, N. Pakdeesatitwara, S. TAEWIJIT, and S. BOONTHAVI. “A Study of Effects of Using ChooJai Artificial Intelligence Robot for Elderlies on Stress Level of Geriatric in Elderly Care Center : A Pilot Study”. NBTC Journal, vol. 5, no. 5, Nov. 2021, pp. 379-98, https://so04.tci-thaijo.org/index.php/NBTC_Journal/article/view/248270.