Sunyoto, Sunyoto, and C.J.P Manopo. 2011. “Kinerja Bellboy Dalam Meningkatkan Kualitas Pelayanan Di Hotel Golden View Batam”. Jurnal Pariwisata Indonesia 7 (1):83-106. http://jurnal.stpsahidsurakarta.ac.id/index.php/JPI/article/view/97.