Ong, S. T., Seah, C. Y. S., Tan, S. M., & Gan, L. L. G. (2008). The demand for healthcare in Singapore.
استشهاد بنمط شيكاغوOng, Shi Ting., Christina Ying Shan Seah, Shang May Tan, و Lydia Loo Geok Gan. The Demand for Healthcare in Singapore. 2008.
MLA استشهادOng, Shi Ting., Christina Ying Shan Seah, Shang May Tan, و Lydia Loo Geok Gan. The Demand for Healthcare in Singapore. 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.