Budihardjo, I., & Derrick, T. R. (2013). Influence of Constraining Barrier on the 5th Lumbar and 1st Sacral joint Compressive Force during Manual Lifting. Journal of Engineering and Technological Sciences, 36(2), 155-167. https://doi.org/10.5614/itbj.eng.sci.2004.36.2.6