Hendrik, H., Suwandi, T., JM, H., & Notobroto, H. B. (2016). Comparison of Results of Measurement Hand Dynamometer with Lactat Acid Blood Plasma for Muscle Fatigue Level Indicator Hand Computer Operator. International Journal of Sciences: Basic and Applied Research (IJSBAR), 27(2), 53-62. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/5788