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.