Stephen J. Nagle & Sara L. Sanders (2003). "southern+is" English in the Southern United States. Cambridge University Press. p. 35[This page differentiates between "Traditional Southern" and "New Southern"]{{cite book}}: نگهداری CS1: پست اسکریپت (link) نگهداری یادکرد:استفاده از پارامتر نویسندگان (link)
