LOW, I., Eio, C., FOO, S. L., PANG, Y. H., LEONG, K. S., & WILLIAMS, J. J. (2009). Asking Tougher Questions in Tough Times. Institutional Knowledge at Singapore Management University.

LOW, Irving, Claudia Eio, See Liang FOO, Yang Hoong PANG, Kwong Sin LEONG, و John Joseph WILLIAMS. Asking Tougher Questions in Tough Times. Institutional Knowledge at Singapore Management University, 2009.

LOW, Irving, et al. Asking Tougher Questions in Tough Times. Institutional Knowledge at Singapore Management University, 2009.