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SAM RYZAL WILY PURNANSAH, NIM. 13660002 (2017) ANALISIS PELAYANAN KUALITAS GO-JEK MENGGUNAKAN PENDEKATAN SERVQUAL, IMPORTANCE PERFORMANCE ANALYSIS (IPA), DAN POTENTIAL GAIN IN CUSTOMER VALUE (PGCV). Skripsi thesis, UIN SUNAN KALIJAGA YOGYAKARTA.