Hutabarat, Nauas Domu Marihot Romauli, Himsar Ambarita, and Karina Nola Sinamo. “Utilization of Technology in Donuts Business”. Journal of Saintech Transfer 2, no. 2 (April 28, 2020): 167–173. Accessed August 4, 2025. https://idjpcr.usu.ac.id/jst/article/view/3692.