Nodiraxon Soliyevna, Mirboboyeva. “THOUGHTS ABOUT THE STAGES OF DEVELOPMENT OF OLIGOPHRENOPEDAGOGY AND MENTAL RETARDATION”. Confrencea 7, no. 7 (November 22, 2022): 102–105. Accessed April 20, 2024. https://confrencea.org/index.php/confrenceas/article/view/334.