Adie Setyawan, Nanang, and Bagus Yunianto Wibowo. “Improving Business Productivity Performance through Entrepreneurship Training and Entrepreneurial Self-Efficacy”. Jurnal Ekuilnomi 5, no. 1 (May 30, 2023): 44 – 51. Accessed September 9, 2024. http://jurnal.usi.ac.id/index.php/ekuilnomi/article/view/455.