Pasmawati, Yanti, Alva Edy Tontowi, Budi Hartono, and Titis Wijayanto. “Determination of Favourite Market for 3D-Printer Product Based Online Platform”. International Review of Management and Marketing 8, no. 5 (August 29, 2018): 18–23. Accessed April 19, 2024. https://econjournals.com/index.php/irmm/article/view/6906.