McNamara, Tim (2005). "21st century shibboleth: language tests, identity and intergroup conflict". Language Policy. 2005 (4). Springer Netherlands: 351–370. doi:10.1007/s10993-005-2886-0. S2CID145528271.
McNamara, Tim (2005). "21st century shibboleth: language tests, identity and intergroup conflict". Language Policy. 2005 (4). Springer Netherlands: 351–370. doi:10.1007/s10993-005-2886-0. S2CID145528271.
vlaggetjesdag.com
"Klederdracht". www.vlaggetjesdag.com. Retrieved 12 May 2018.