Heng, A. Q. Y., Lee, H. L., Yeo, S. A. S. M., & School, N. B. (2008). The impact of the Asian economic crisis on the tourism industry in Singapore.
استشهاد بنمط شيكاغوHeng, Anna Quee Ying., Hui Ling Lee, Soomy Alicia Sok Mey Yeo, و Nanyang Business School. The Impact of the Asian Economic Crisis On the Tourism Industry in Singapore. 2008.
MLA استشهادHeng, Anna Quee Ying., Hui Ling Lee, Soomy Alicia Sok Mey Yeo, و Nanyang Business School. The Impact of the Asian Economic Crisis On the Tourism Industry in Singapore. 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.