Chakrit Na Takuathung และ Piyawat Diloksumpun. (2021) Ergonomic Risk Assessments of Timber Harvesting Workers in Teak Plantations, Phrae Province. <i>Thai Journal of Science and Technology</i>, <i>10</i>(2), 223-233.Chakrit Na Takuathung และ Piyawat Diloksumpun. "Ergonomic Risk Assessments of Timber Harvesting Workers in Teak Plantations, Phrae Province". Thai Journal of Science and Technology 10 (2021):223-233.Chakrit Na Takuathung และ Piyawat Diloksumpun. Ergonomic Risk Assessments of Timber Harvesting Workers in Teak Plantations, Phrae Province. Thammasat University:ม.ป.ท. 2021.