Sariwulan, T., and S. Suparno. “Factors Explaining the Performance of Entrepreneurs in the Industry 4.0: A Theoretical Approach”. Jurnal Pendidikan Ekonomi Dan Bisnis (JPEB), Vol. 8, no. 2, Oct. 2020, pp. 154-6, doi:10.21009/JPEB.008.2.7.