Nurly, Hilfia Alifa, and Mulyono Mulyono. 2020. “The Correlation Between Elbow and Parturition Bed Height With the Risk of Musculoskeletal Disorders”. The Indonesian Journal of Occupational Safety and Health 9 (2):222-31. https://doi.org/10.20473/ijosh.v9i2.2020.222-231.