Suseno, and Ilman Adi Permana. “ANALISIS CUSTOMER SATISFACTION INDEX TERHADAP KINERJA J&T EXSPRESS MENGGUNAKAN METODE SERVQUAL DAN IMPORTANCE PERFORMANCE ANALYSIS (IPA) STUDI KASUS J&T EXSPRESS BANJAR”. Jurnal Cakrawala Ilmiah, vol. 1, no. 6, Feb. 2022, pp. 1205-18, doi:10.53625/jcijurnalcakrawalailmiah.v1i6.1487.