UNLA, T. Problem Management for Social Surveillance. Thammasat University Hospital Journal Online, Pathum Thani, Thailand, v. 2, n. 2, p. 35–38, 2017. Disponível em: https://he02.tci-thaijo.org/index.php/TUHJ/article/view/240248. Acesso em: 1 oct. 2026.