Chantarak , S. (2024) “ Competency Development of Health Volunteers (VHVs) in Efficient of the Elder Community Healthcare”, Journal for Developing the Social and Community . Bangkok, Thailand, 11(2), pp. 509–522. available at: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/274818 (accessed: 17 September 2026).