T. Rapani Febbiyanti, R. Ardika, and Anita Setyawati, “Efficacy test of biological agent Trichoderma spp. against white root fungus disease (Rigidoporus microporus) in rubber tree (Hevea brasiliensis)”, J. Lahan Suboptimal, vol. 15, no. 1, pp. 21–27, Apr. 2026.