Mahmudah, Elli Efrida, Try Koryati, Joko Setiawan, and Puji Wahyu Mulyani. 2025. “The Effectiveness of Rorak in Increasing Arabica Coffee (Coffea Arabica L.) Growth and Productivity in the Gayo Highlands Bener Meriah Regency”. JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) 7 (3), 916 -. https://doi.org/10.36378/juatika.v7i3.4838.