Arya Saputra, Irmayani, and Isna Juwita. “ANALISIS KUALITAS LAYANAN SERVQUAL TERHADAP KEPUASAN PELANGGAN LAUNDRY DENGAN IMPORTANCE PERFORMANCE ANALYSIS (IPA) ”. Ekasakti Engineering Journal 5, no. 2 (November 25, 2025). Accessed February 23, 2026. https://ejurnal-unespadang.ac.id/E-EJ/article/view/1380.