Columbia subject headings:
Harvard subject headings:
Eswatini--Boundaries--South Africa.
Eswatini--Foreign relations--South Africa.
Ingwavuma (South Africa)--Politics and government.
Kangwane (South Africa)--Politics and government.
South Africa--Boundaries--Eswatini.
South Africa--Foreign relations--Eswatini.
Princeton subject headings:
Swaziland--Foreign relations--South Africa.
Swaziland--Politics and government--1968-.