CHRISTANTYO, James. KUALITAS PRODUK DAN LAYANAN TERHADAP KEPUASAN PELANGGAN BLACK KAWA COFFEE SURABAYA. PERFORMA, [S. l.], v. 5, n. 1, p. 72–78, 2020. DOI: 10.37715/jp.v5i1.1304. Disponível em: https://ojs.somebut.my.id/index.php/performa/article/view/1304. Acesso em: 19 feb. 2026.