Savolainen, Erkki (1998). "1.6 Savolaismurteiden alue" [1.6 Savo dialect area]. Suomen murteet (in Finnish). Archived from the original on 6 October 1999. Retrieved 16 March 2016.
Savolainen, Erkki (1998). "1.7 Kaakkoismurteiden alue" [1.7 South-Eastern dialect area]. Suomen murteet (in Finnish). Archived from the original on 4 October 1999. Retrieved 16 March 2016.
Savolainen, Erkki (1998). "1.6 Savolaismurteiden alue" [1.6 Savo dialect area]. Suomen murteet (in Finnish). Archived from the original on 6 October 1999. Retrieved 16 March 2016.
Savolainen, Erkki (1998). "1.7 Kaakkoismurteiden alue" [1.7 South-Eastern dialect area]. Suomen murteet (in Finnish). Archived from the original on 4 October 1999. Retrieved 16 March 2016.