- Hadley, Z. (2021) "Fixing a Hole: Contemporary Security Issues in Africa," The Journal of International Relations, Peace Studies, and Development: Vol. 6 : Iss. 1 , Article 3.
- Hadley, Z. (2019). "Replication Data for: African Spaghetti Bowl: Assessing State Rationales in African Peacekeeping, 1999-2016.", https://doi.org/10.7910/DVN/VJVLEP, Harvard Dataverse, V1, UNF:6:XkcXHAPB257C/Fl7HC0xUA== [fileUNF]
- Hadley, Z. (2018). African Spaghetti Bowl: Assessing State Rationales in African Peacekeeping Operations, 1999-2016 (ALM Thesis). Harvard University, Cambridge.
- Goetz-Charlier, A., & Hadley, Z. (2018). Blood and Iron: Nationalism and the 1935 Saar Plebiscite. (Working paper).