1.
|
Singapore : Springer ; [China] : Social Sciences Academic Press, [2021] ©2021
|
2.
|
London : Routledge, 2014.
|
3.
|
Singapore : Palgrave Macmillan, 2022.
|
4.
|
New York : Routledge, 2013.
|
5.
|
Singapore : Springer, [2017]
|
6.
|
New York : Palgrave Macmillan, ©2017
|