Rapani Febbiyanti, Tri, Risal Ardika, and Anita Setyawati. 2026. “Efficacy Test of Biological Agent Trichoderma Spp. Against White Root Fungus Disease (Rigidoporus Microporus) in Rubber Tree (Hevea Brasiliensis)”. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 15 (1):21-27. https://doi.org/10.36706/jlso.15.1.2026.766.