Goh, Y. P., Eddy, P., Lee, P. H., & McGovern, I. (2008). Challenges facing travel agencies in Singapore: Interaction between travel, youth, and the internet.
استشهاد بنمط شيكاغوGoh, Yi Ping, Putra Eddy, Puay Hien Lee, و Ian McGovern. Challenges Facing Travel Agencies in Singapore: Interaction between Travel, Youth, and the Internet. 2008.
MLA استشهادGoh, Yi Ping, Putra Eddy, Puay Hien Lee, و Ian McGovern. Challenges Facing Travel Agencies in Singapore: Interaction between Travel, Youth, and the Internet. 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.