Minavvarovna, Umarova Saboxon, and Erkinova Sarvinoz Mashrabjon qizi. “Classification of Oligophrenia and Their Clinical and Pedagogical Features”. Middle European Scientific Bulletin 16 (September 28, 2021). Accessed November 22, 2024. https://cejsr.academicjournal.io/index.php/journal/article/view/741.