แจ่มพัฒนกิจ พิพัฒน์. “The prevalence rate and risk factors of noise induced hearing loss among occupational noise exposure workers in Pakchong na na Hospital”. Region 11 Medical Journal 32, no. 2 (June 1, 2018): 981–992. accessed September 20, 2026. https://he02.tci-thaijo.org/index.php/Reg11MedJ/article/view/156356.