LIGNOCELLULOSE MODIFICATION AND NUTRITIONAL ENRICHMENT OF PALM OIL FRONDS: A STUDY ON OPTIMIZED PRETREATMENT AND MICROBIAL FERMENTATION FOR RUMINANT FEED: Oil Palm Frond As Feed. MAGRJ 2026, 54 (3), 73-102. https://doi.org/10.33899/magrj.v54i3.61395.