ธีรโสภณ ป., พันธ์งาม น., and หาดแก้ว น. “The Innovation of Invented Gel Pad for Use in Health Promotion and Nursing Therapeutic”. Journal of Phrapokklao Nursing College, Chanthaburi, vol. 27, no. 2, Apr. 2018, pp. 65-77, https://he01.tci-thaijo.org/index.php/pnc/article/view/117527.