Sangwalee, W., Photipim, M., Bunyapakorn, S., Bunyapakorn, J., Sungwalee, W., Suwannatrai, S. and Inthachack, S. 2026. Occupational Health Risk among Informal Workers in Nakhon Ratchasima Province. Journal of Vongchavalitkul university. 39, 1 (Jun. 2026), 109–124.