Farhana Mahjabeen,Tayyaba Ishtiaq,Dr. Ali Hussain Bin Sadiq. “An Acoustic Analysis of Diphthongs in Pakistani and British English”. Harf-O-Sukhan, Vol. 8, no. 3, July 2024, pp. 90-102, https://harf-o-sukhan.com/index.php/Harf-o-sukhan/article/view/1577.