Nugraha, Yudha, AND 		Hau, Yurisah.
" ANALISIS PELAYANAN COUNTER CHECK-IN CITILINK INDONESIA DENGAN MENGGUNAKAN METODE ANTRIAN DI ERA PANDEMI COVID-19" <em>Jurnal IPTA (Industri Perjalanan Wisata)</em> [Online], Volume 9 Number 1 (20 July 2021)