PHATCHANA, P.; CHAIYASONG, S.; KALAPAT, R.; SANKONG, N.; SARAMUNEE, K.; MALASAI, K.; PHOSRI, K.; RADEE, B. Willingness to Pay for Elderly Care in Nam Phong District, Khon Kaen Province. Journal of Health Systems Research, Nonthaburi, Thailand, v. 16, n. 4, p. 437–55, 2022. Disponível em: https://he04.tci-thaijo.org/index.php/j_hsr/article/view/3292. Acesso em: 23 aug. 2025.