RICKY LOUIS NAIBAHO; LISTON RIVALDO SITORUS; JAN MORIS SARAGIH; PUTRI KEMALA DEWI LUBIS; ROSSY PRATIWI SIHOMBING. Analisis Resiko Operasional UMKM Pecel Lele dan Ayam Lamongan Kang Adi William Iskandar Medan Tembung. OPTIMAL Jurnal Ekonomi dan Manajemen, [S. l.], v. 4, n. 2, p. 187–197, 2024. DOI: 10.55606/optimal.v4i2.3460. Disponível em: https://researchhub.id/index.php/optimal/article/view/3460. Acesso em: 5 may. 2025.