Setiawan, Heri Cahyo Bagus, et al. “Vocational-Based and Islamic Entrepreneurship Innovation How Kopi Jali Competes from a Non-Coffee Region”. Indonesian Vocational Research Journal, vol. 5, no. 1, Nov. 2025, pp. 5-10, https://journal.umg.ac.id/index.php/ivrj/article/view/10771.