JIENARDY, Christine. GAP ANALISIS PERSEPSI DAN EKSPEKTASI KONSUMEN TERHADAP KUALITAS LAYANAN, HARGA, KUALITAS PRODUK ESUS. Jurnal Performa: Jurnal Manajemen dan Start-up Bisnis, [S. l.], v. 1, n. 6, p. 703–710, 2017. DOI: 10.37715/jp.v1i6.398. Disponível em: https://journal.uc.ac.id/index.php/performa/article/view/398. Acesso em: 12 mar. 2026.