Girsang, Warlinson, Jonner Purba, and Suryadi Daulay. 2020. “UJI APLIKASI AGENS HAYATI TRIBAC MENGENDALIKAN PATHOGEN HAWAR DAUN (Helminthosporium sp.) TANAMAN JAGUNG (Zea Mays L.) ”. Jurnal Ilmiah Pertanian 17 (1), 51-59. https://doi.org/10.31849/jip.v17i1.4614.