1.
|
New York : Peter Lang, c2011.
|
2.
|
Cham : Springer International Publishing : Imprint : Palgrave Macmillan, 2019.
|
3.
|
Stellenbosch, South Africa : African Sun Media, [2020] 2020
|
4.
|
Palgrave Macmillan, 2017.
|
5.
|
Rotterdam : SensePublishers, 2014. ©2014
|
6.
|
[Cham] : Palgrave Macmillan, 2016.
|
7.
|
Cham, Switzerland : Palgrave Macmillan, 2022.
|
8.
|
Cham : Springer International Publishing : Imprint : Palgrave Macmillan, 2018.
|
9.
|
Rotterdam : SensePublishers : Imprint: SensePublishers, 2016.
|
10.
|
Singapore : Springer, [2021]
|