How will these resources help you?

You may be teaching this topic at KS4 as a period study of at least 50 years. These resources bring in a variety of viewpoints to enrich the study. They encourage students to always consider the experiences of different groups, whatever historical period they are learning about. Mainstream curriculum materials about apartheid focus on the apartheid laws, government and political leaders. On the anti-apartheid side, there is a strong focus on Nelson Mandela. While these aspects are important, you can introduce diverse perspectives, examining the experiences of Black women, children and young people under apartheid and the international anti-apartheid campaign. For an introduction to the peoples of South Africa, see https://minorityrights.org/country/south-africa/.  
The further reading list has a resource about Indians in South Africa.