1. Altbach, P. G., & Yudkevich, M. (2017). Twenty-first century mobility: The role of international faculty. International Higher Education, 90, 8–10.
2. Auriol, L. (2007). Labour market characteristics and international mobility of doctorate holders: results for seven countries. OECD STI Working paper. Available online:https://www.oecd-ilibrary.org/docserver/310254328811.pdf?expires=1566057283&id=id&accname=guest&checksum=533EB55E7C8AB37614343505B3A28945
3. Bound, J., Turner, S., & Walsh, P. (2009). Internationalization of US doctorate education (No. 14792). National Bureau of Economic Research. Available online: https://www.nber.org/papers/w14792
4. Chellaraj, G., Maskus, K. E., & Mattoo, A. (2005). The contribution of skilled immigration and international graduate students to US innovation. The World Bank. Available online: https://elibrary.worldbank.org/doi/abs/10.1596/1813-9450-3588
5. Corley, E. A., & Sabharwal, M. (2007). Foreign-born academic scientists and engineers: Producing more and getting less than their US-born peers? Research in Higher Education, 48(8), 909–940.