Arifandi Adiyuda, F. THE EFFECT OF VOLUME FRACTION AND ALKALI TREATMENT ON THE IMPACT STRENGTH OF A COMPOSITE MADE FROM PINEAPPLE LEAF FIBERS (ANANAS COMOSUS L. MERR) – EPOXY: PENGARUH FRAKSI VOLUME DAN PERLAKUAN ALKALI TERHADAP KEKUATAN IMPACT KOMPOSIT BERBAHAN SERAT DAUN NANAS (ANANAS COMOSUS L. MERR) – EPOXY. J-MEEG 2024, 3, 323-329.