S. SyathAbuthakeer, T. Pavithran, M.S.E. Vigneshra and S. Vimalkumar (2017) “Experimental investigation on human hand arm vibration in a jack hammer operator – sand floor ”, International journal of intellectual advancements and research in engineering computations, 5(2), pp. 1945–1948. doi: 10.61096/ijiarec.v5.iss2.2017.1945-1948.