Rahmadina, Rahmadina, et al. “Community Perceptions of Beef Cattle Farm Sustainability in Tanjung Selamat, Medan Tuntungan, North Sumatra”. Jurnal Biologi Tropis, vol. 24, no. 2, June 2024, pp. 504-10, doi:10.29303/jbt.v24i2.6686.