(1)
Tri Mulyo, B.; Yudiono, H. Toughness Analysis of Pineapple Leaves Fiber Composite As Alternative Material for SNI Helmet. J. Mech. Eng. Sci. 2019, 13 (4), 5961-5972. https://doi.org/10.15282/jmes.13.4.2019.16.0472.