Penyebab munculnya keterlambatan pelayanan pemberian perpanjangan izin tinggal terbatas (ITAS) (studi kasus pada kantor imigrasi klas I khusus Jakarta Barat) = The causes the lateness in the services limited stay permit extension (ITAS) (case study of category I special immigration office in West Jakarta) - Telmaizulsyatri, author (2010)