What specific methods did the White Minority government use to stay in power

To hold power in South Africa, the White Minority government issued a system of Apartheid.

Explanation:

Apartheid supported by the National Party government and introduced in 1948. Apartheid introduce separate development of the racial groups in South Africa. Nonwhite South Africans required to live in separate areas from whites. A series of Land Acts set implemented that allowed the white minority to hold more than 80 percent of the country's land. The White minority government also got supported from countries like Britain, the USA, and other European countries that invested their capital in South Africa because of natural resources.