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. (2026). Mesopotamia Journal of Agriculture, 54(3), 73-102. https://doi.org/10.33899/magrj.v54i3.61395