Verhoeven (2007),第221頁. Verhoeven, Jo, The Belgian Limburg dialect of Hamont, Journal of the International Phonetic Association, 2007, 37 (2): 219–225, doi:10.1017/S0025100307002940
Zimmer & Orgun (1999),第155頁. Zimmer, Karl; Orgun, Orhan, Turkish(PDF), Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge: Cambridge University Press: 154–158, 1999 [2015-11-21], ISBN 0-521-65236-7, (原始内容(PDF)存档于2018-07-25)
Zimmer & Orgun (1999),第155頁. Zimmer, Karl; Orgun, Orhan, Turkish(PDF), Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge: Cambridge University Press: 154–158, 1999 [2015-11-21], ISBN 0-521-65236-7, (原始内容(PDF)存档于2018-07-25)