“Test The Ability of Tricoderma Harzianum and Bacillus Subtilis As Control Agents of Wilted Ralstonia Solanacearum Bacteria in Tobacco Plants (Nicotiana tobacum): Uji Kemampuan Trichoderma Harzianum Dan Bacillus Subtilis Sebagai Agen Pengendali Layu Bakteri (Ralstonia Solanacearum) Pada Tanaman Tembakau (Nicotiana Tabacum)”. 2020. Nabatia 8 (1): 1-7. https://nabatia.umsida.ac.id/index.php/nabatia/article/view/913.