THE ROLE OF PHONATION ENERGY EFFICIENCY IN SOUND CHANGES. «Maktabgacha va maktab ta’limi» [Internet]. 2026 Oct. 13 [cited 2026 Oct. 18];4(10):114-8. Available from: https://maktabgacha-va-maktab-talimi-jurnal.uz/index.php/jurnal/article/view/9812