共 50 条
- [1] Challenges for tourism research in the 21st Century EUROPEAN JOURNAL OF TOURISM HOSPITALITY AND RECREATION, 2019, 9 (01): : 1 - 2
- [2] CHALLENGES FOR COLLECTIVE HEALTH IN THE 21ST CENTURY REVISTA DE SALUD PUBLICA-CORDOBA, 2012, 16 (02): : 93 - 97
- [6] Aerobiology - trends in research challenges in the 21st century ALERGIA ASTMA IMMUNOLOGIA, 2008, 13 (03): : 142 - 146
- [7] MARKETING RESEARCH IN THE 21ST CENTURY: OPPORTUNITIES AND CHALLENGES REVISTA BRASILEIRA DE MARKETING, 2018, 17 (05): : 666 - 681