Aktivitas Penghambatan Trichoderma Spp. Formulasi Terhadap Jamur Patogen Tular Tanah Secara In Vitro = In Vitro Inhibition Activity Of Formulated Trichoderma Spp. Against Soil-Borne Pathogenic Fungi - Perpustakaan UGM, i-lib ([Yogyakarta] : Jurusan Hama Penyakit Tumbuhan Fak. Pertanian UGM, 2002)