Crush, Jonathan S. (1979). "Settler-Estate Production, Monopoly Control, and the Imperial Response: The Case of the Swaziland Corporation Ltd". African Economic History (8): 183–197. doi:10.2307/3601564. ISSN0145-2258. JSTOR3601564.
Crush, Jonathan S. (1979). "Settler-Estate Production, Monopoly Control, and the Imperial Response: The Case of the Swaziland Corporation Ltd". African Economic History (8): 183–197. doi:10.2307/3601564. ISSN0145-2258. JSTOR3601564.
Crush, Jonathan S. (1979). "Settler-Estate Production, Monopoly Control, and the Imperial Response: The Case of the Swaziland Corporation Ltd". African Economic History (8): 183–197. doi:10.2307/3601564. ISSN0145-2258. JSTOR3601564.