LUTFIANTI, R. Strategi Perbaikan Kualitas Pelayanan Café XYZ Menggunakan Metode Importance Performance Analysis Dan Tree Diagram. e-Proceeding FTI, [S. l.], 2024. Disponível em: https://eproceeding.itenas.ac.id/index.php/fti/article/view/3500. Acesso em: 1 feb. 2026.