Nana, J., Adoe, D. and Selan, R. 2025. Mechanical Testing of Palm Fiber Pretreatment NaOH With Polyester Matrix Material. LONTAR Jurnal Teknik Mesin Undana. 12, 01 (Apr. 2025), 33-39. DOI:https://doi.org/10.35508/ljtmu.v12i01.20145.