Udeshi Hardik. 2017. “DIPHTHONGS: PROBLEMS AND SOLUTIONS FOR NON-NATIVE SPEAKERS OF SAURASHTRA REGION”. Vidhyayana - An International Multidisciplinary Peer-Reviewed E-Journal - ISSN 2454-8596 3 (3). https://vidhyayanaejournal.org/journal/article/view/281.