Rahayu, Tri, Muhammad Ihsan, and Marlina Siregar. “Analysis Of Business Income Of Tofu Industry Production In North Labuhanbatu District”. EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis 11, no. 2 (July 31, 2023): 1953 -. Accessed July 22, 2024. https://jurnal.unived.ac.id/index.php/er/article/view/5762.