Alit, R. ., & Putra, C. A. . (2018). Implementation CorelDraw as the Idea of Entrepreneurial Student Boarding School Al–Iqbal Surabaya with Lean Startup Approach. Nusantara Science and Technology Proceedings, 383-388. Retrieved from https://nstproceeding.com/index.php/nuscientech/article/view/62