Yudina IA, Stepanova NV, Ivanova AD. The role of parents in the speech therapy work with early age children having delay in speech development in a bilingual environment. AmazInv [Internet]. 2019 Aug. 31 [cited 2025 Nov. 3];8(21):408-19. Available from: https://mail.amazoniainvestiga.info/index.php/amazonia/article/view/119