Ni Kadek Widyastuti, et al. “How to Handling The Guest Complaint Di The Sankara Suites and Villas Ubud, Kabupaten Gianyar, Provinsi Bali ”. Jurnal Nirta : Studi Inovasi, vol. 5, no. 1, Sept. 2025, pp. 478-85, doi:10.61412/jnsi.v5i1.308.