Cheevaprasert, Aphidej, and Aurapan Chaimanee. 2021. “The Practice of Doctors, Who Completed a 2-Month Basic Knowledge Training Course in Occupational Medicine, in the Public Sector and in the Private Sector”. Journal of Preventive Medicine Association of Thailand 10 (3):509-21. https://he01.tci-thaijo.org/index.php/JPMAT/article/view/247124.