Mahyuni, E L. “Occupational Safety and Health Hazards and Musculoskeletal Disorders (MSDs) at Sprayed Work Farmer in Sumber Mufakat Village Kabanjahe 2016”. KnE Life Sciences 4, no. 10 (March 7, 2019): 155–160. Accessed April 29, 2024. https://knepublishing.com/index.php/KnE-Life/article/view/3782.