Physical and Impact Behavior of HDPE Composites Reinforced With Woven Ramie and Hydroxyapatite Dofa Chriswidhi, Kriswanto, Kaleb Priyanto, Andika Agus Tri Wibowo, Aminur Aminur, Al Ichlas Imran Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol. 10 No. 3 2025