Çorakçı, N., and M. Demirezen. “THE AUDITORY PERCEPTION OF NORTH AMERICAN ENGLISH DIPHTHONGS IN VOCABULARY ITEMS BY ENGLISH TEACHERS IN TURKEY”. International Online Journal of Education and Teaching, vol. 7, no. 2, Apr. 2020, pp. 451-66, https://iojet.org/index.php/IOJET/article/view/709.