พรกาญจนวงศ์ พ. District Health System Operation Model Health Zone 12 of Years 2015 – 2017. Region 11 Medical Journal, [S. l.], v. 33, n. 1, p. 59–72, 2019. Disponível em: https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/188287. Acesso em: 21 sep. 2026.