Lilja, Fredrik. «Child and Youth Labour in Eastern Cape Agriculture: Wool Farming and Changing Labour Relations, C. 1900–1960». Barn – forskning om barn og barndom i Norden 27, no. 3–4 (september 1, 2009). åpnet mai 15, 2024. https://tidsskriftetbarn.no/index.php/barn/article/view/4650.