Muhammadjonova Iroda, & Xaydarova Nigora Tuxtasunovna. (2025). THE SYSTEMIC VARIABILITY OF ENGLISH DIPHTHONGS: A THEORETICAL AND PEDAGOGICAL REAPPRAISAL. International Multidisciplinary Journal for Research & Development, 12(11), 507–510. Retrieved from https://www.ijmrd.in/index.php/imjrd/article/view/4082