Chafidz, Achmad, Muhammad Rizal, Faisal RM, Mujtahid Kaavessina, Dhoni Hartanto, and S. M. AlZahrani. 2018. “Processing and Properties of High Density Polyethylene Date Palm Fiber Composites Prepared by a Laboratory Mixing Extruder”. Journal of Mechanical Engineering and Sciences 12 (3):3771-85. https://doi.org/10.15282/jmes.12.3.2018.2.0333.