Zeng, J. Q., Ng, J. T. H., Sheam, J. Q. S., & McGovern, I. (2010). Internet international marketing in the tourism industry: Strategies for the survival of travel agents in Singapore.
استشهاد بنمط شيكاغوZeng, Jared Qiyang, Jacqueline Teng Hong Ng, Jolene Qiao Shi Sheam, و Ian McGovern. Internet International Marketing in the Tourism Industry: Strategies for the Survival of Travel Agents in Singapore. 2010.
MLA استشهادZeng, Jared Qiyang, Jacqueline Teng Hong Ng, Jolene Qiao Shi Sheam, و Ian McGovern. Internet International Marketing in the Tourism Industry: Strategies for the Survival of Travel Agents in Singapore. 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.