N. Xu and M. Fok and L. Bai
2008, Article (sc. journal)
Fok Michel, Xu Naiyin
2007, Article (sc. journal)
Y. Wu and G. Wang and W. Liang
2005, Article (sc. journal)
N. Xu and M. Fok
2010, Article (sc. journal)
M. Fok and N. Xu
2011, Article (sc. journal)
M. Fok and N. Xu
2010, Article (sc. journal)
M. Fok and N. Xu
2010, Article (sc. journal)
W. Li and Z. Zhou and Y. Meng
2009, Article (sc. journal)
THE WORLD BANK
2008, Article (sc. journal)
Wang Guiyan and Fok Michel
2014, Article (sc. journal)