Afghanistan and Middle East have the variety of Hijab (cover) way longer than current war, and need for study in conflict resolution. You could choose the variables of education, sexism, and extreme honor issues which is much more impotant than females, (young or old), in the majority of Midle East, not all.
It depends on what you are interested in investigating/interrogating. Beyond Anthropologists, Legal Studies scholars have written about Jirgas from the Customary Law / Transitional Justice perspectives and frameworks. Peacebuilding and Development Studies scholars invoke concepts of 'friction'/'hybridity' etc. As far as Anthropologists are concerned, I disagree with the previous suggestions; contemporary scholars read Barth, but have moved far beyond his decades old frameworks.
This article cites here work: http://asien.asienforschung.de/wp-content/uploads/sites/6/2014/04/ASIEN_104_Buchholz.pdf
You might also find her work useful: “Community Governance and State Building in Rural Afghanistan,” 2009. Central Eurasian Studies Review, 7 (2): 12-16.
And not sure how good this is, but it does discuss interesting elements: http://www.tribalanalysiscenter.com/PDF-TAC/Jirga%20System%20in%20Tribal%20Life.pdf
Still I'd try to find a copy of Christine Noelle Karimi's book, or even Thomas Barfield's book on Afghanistan.