Kurniawan, Mochammad Reza. “Optimalisasi Pengembangan Usaha Melalui Legalitas Usaha Bagi UMKM Di Kabupaten Lumajang”. RECORD: Journal of Loyality and Community Development, vol. 3, no. 1, Jan. 2026, pp. 30-35, https://ejournal.mediakunkun.com/index.php/record/article/view/328.