Ginting, C., Azrah Humairah Sirait, Titik Nur Aeny and Tri Maryono 2025. THE EFFECTIVENESS OF LECANICILLIUM LECANII, BETEL LEAF EXTRACT AND COPPER OXIDE TO CONTROL RUST DISEASE ON COFFEE LEAF DISCS IN THE LABORATORY. Jurnal Agrotek Tropika. 13, 3 (Oct. 2025). DOI:https://doi.org/10.23960/jat.v13i3.11416.