Sitinjak, Wahyunita, et al. “Strategi Pengembangan Agrowisata Berbasis Agroindustri Kopi Robusta Di Kabupaten Dairi”. Jurnal Ekuilnomi, vol. 7, no. 3, Nov. 2025, pp. 1035 – 1042, https://doi.org/10.36985/47qqvm98.