WIDODO, W.; LESTARI, G. D.; SUSILO, H.; NUSANTARA, W.; QODRIYATI, T.; FIRMANSYAH, A. Construction of the Entrepreneurial Spirit of Package C at PKBM Al-Kayyis Indonesia Gresik. Journal of General Education and Humanities, Bandung, Indonesia, v. 5, n. 4, p. 5831–5846, 2026. DOI: 10.58421/gehu.v5i4.2009. Disponível em: https://journal-gehu.com/index.php/gehu/article/view/2009. Acesso em: 14 nov. 2026.