Khamkhom, Nara, and Paranee Visuttipun. “Social Engagement among Thai Older Persons with Visual or Hearing Impairment”. Journal Of Ratchasuda Institute for Research and Development of Persons With Disabilities 19, no. 1 (June 30, 2023): 1–20. accessed April 24, 2025. https://so03.tci-thaijo.org/index.php/RSjournal/article/view/264488.