W. Sitinjak, Z. Lubis, and M. B. Sibuea, “Strategi Pengembangan Agrowisata Berbasis Agroindustri Kopi Robusta Di Kabupaten Dairi”, Ekuilnomi, vol. 7, no. 3, pp. 1035 – 1042, Nov. 2025, doi: 10.36985/47qqvm98.