Fitz, John (2001). Shimahara, N. Ken; Holowinsky, Ivan Z.; Tomlinson-Clarke, Saundra (Ed.). Local identity and national systems: the case of Wales. Ethnicity, race, and nationality in education: a global perspective. Mahwah, New Jersey: Lawrence Erlbaum Associates, Inc. s.248. ISBN978-0-8058-3837-4. 23 Nisan 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: 24 Kasım 2010.
Fitz, John (2001). Shimahara, N. Ken; Holowinsky, Ivan Z.; Tomlinson-Clarke, Saundra (Ed.). Local identity and national systems: the case of Wales. Ethnicity, race, and nationality in education: a global perspective. Mahwah, New Jersey: Lawrence Erlbaum Associates, Inc. s.248. ISBN978-0-8058-3837-4. 23 Nisan 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: 24 Kasım 2010.