Chia, J. P. C., Choo, I. C., & Chen, S. (2008). Walking in the 21st century: A necessary new business model for outbound travel agents.
استشهاد بنمط شيكاغوChia, Jennifer Pei Ching., Ian Chong Choo, و Shaoxiang Chen. Walking in the 21st Century: A Necessary New Business Model for Outbound Travel Agents. 2008.
MLA استشهادChia, Jennifer Pei Ching., Ian Chong Choo, و Shaoxiang Chen. Walking in the 21st Century: A Necessary New Business Model for Outbound Travel Agents. 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.