Ni Luh Novi Suryantini Dewi, I Gusti Agung Mas Krisna Komala Sari and I Nyoman Winia (2020) “Source of The Reservation in Relation to Increase Volume of Room Sales on Discovery Kartika Plaza Hotel”, EDUTOURISM Journal Of Tourism Research, 2(02), pp. 162-168. doi: 10.53050/ejtr.v2i02.140.