Horwath, Ernest B.
Hotel accounting
Ronald Press, 1970
 Buku Teks
Horwath, Ernest B.
Hotel accounting
John Wiley & Sons, 1977
 Buku Teks
Predy Pujiono
Analisis pajak pertambahan nilai atas penyerahan jasa reservasi hotel melalui online travel agent = Value added tax analysis on the delivery of hotel reservation services throught online travel agent
2018
 UI - Skripsi Membership
Hotel management and operations/ edited by Denney G. Rutherford
edited by Denney G. Rutherford
Van Nostrand Reinhold, 1995
 Buku Teks SO
Salsya Berin Citranagari
Pelindungan Hukum terhadap Konsumen Pengguna Jasa Pemesanan Tempat Penginapan melalui Online Travel Agent (OTA): Studi Perbandingan Pengaturan di Indonesia dan India = Legal Protection of Consumer of Lodging Booking Services through Online Travel Agents (OTA): Comparative Study of Regulation in Indonesia and India
Fakultas Hukum Universitas Indonesia, 2023
 UI - Skripsi Membership