Ridwansyah. “Utilization of Tofu Rounder Machine in the Small Medium Entrepreneurship (SME) of Tofu Chips in Galang, Deli Serdang Regency, North Sumatra ”. Journal of Saintech Transfer 2, no. 1 (November 4, 2019): 13-23. Accessed April 26, 2024. https://talenta.usu.ac.id/jst/article/view/970.