Brachet, Julien; Scheele, Judith (2019). The Value of Disorder : Autonomy, Prosperity, and Plunder in the Chadian Sahara. Cambridge: Cambridge University Press. pp. 106–119. doi:10.1017/9781108566315. ISBN9781108566315. S2CID181557618.
Brachet, Julien; Scheele, Judith (2019). The Value of Disorder : Autonomy, Prosperity, and Plunder in the Chadian Sahara. Cambridge: Cambridge University Press. pp. 106–119. doi:10.1017/9781108566315. ISBN9781108566315. S2CID181557618.