“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, vol. 54, no. 3, pp. 73–102, Sep. 2026, doi: 10.33899/magrj.v54i3.61395.