A. Nawai, S. Phongphanngam, M. Radabutr, S. Saritdikul, and T. Rearungchom, “The Effectiveness of Mindfulness Meditation in Relieving Chronic Pain in Older Adults: A Systematic Review”, J Royal Thai Army Nurses, vol. 21, no. 1, pp. 125–135, Apr. 2020.