41. | | Resp- Sec.: Yi-Shun, Wang Hsien-Ta, Li Ci-Rong, Li Ding-Zhong, Zhang | |
42. | | Resp- Sec.: Montejo Bujan, Yigal García Moreno, Beatriz Giráldez Sotelo, Pedro Pérez Varela, Isabel Fernández Alcantud, Andrés | |
43. | | Resp- Sec.: Wheaton, Mele Ardoin, Nicole M. Hunt, Carter Schuh, Janel S. Kresse, Mathew Menke, Claire Durham, William H. | |
44. | | Autor: Myung-Ja, Kim Coautor: ; Preis, Michael W. | |
45. | | Autor: Gössling, Stefan Coautor: ; Lane, Bernard | |
46. | | Resp- Sec.: Lamsfus, Carlos Dan, Wang Alzua-Sorsabal, Aurkene Zheng, Xiang | |
47. | | Autor: Rifai, Taleb | |
48. | | Autor: Psarros, Manolis Coautor: ; Pastras, Pantazis | |
49. | | Col.autor: WYSE- World Youth Student and Educational Travel Confederation | |
50. | | Autor: Jordan, Peter | |