| 1. | Annual report on Asia tourism trends / OMT, ETCData Publicação: 2015 Col.autor: OMT COTA(S): 19921 |  | |
| 2. | Global Report on the power of youth travel : Affiliate members report: volume thirteen / World Tourism Organization (UNWTO)Data Publicação: 2014 Col.autor: OMT COTA(S): 19923 | | |