Boonyoo, A., Bunthumporn, N., & Somprasert, C. (2026). The Effects of Positive Mental Health Promotion Program on The Mental Health Self-Care Behavior of Older Adults. Journal of The Royal Thai Army Nurses, 27(1), 684–691. retrieved from https://he01.tci-thaijo.org/index.php/JRTAN/article/view/275235