[1]
M. N. . Abdullah, M. S. . Yaakob, M. K. H. . Muda, and F. . Mustapha, “Drop-Weight Impact Test for Measuring the Damage Resistance of Aero Helmets”, J. Adv. Res. Appl. Mech. , vol. 9, no. 1, pp. 31–39, Oct. 2020.