Sinaga, Marnidauli, and Muhammad Arifin Nasution. “Analisis Strategi Bersaing Pada UKM Jus Buah (Studi Pada Usaha Rayna Juice)”. Regress: Journal of Economics & Management, vol. 2, no. 1, Sept. 2022, pp. 35-45, doi:10.57251/reg.v2i1.548.