Hayitmuradov Sherzod Sagdullayevich, & Habibulloyev Doniyor Sadulloyevich. (2021). CONDITIONS FOR EFFECTIVE IMPLEMENTATION OF LEVEL STRUCTURE IN SECONDARY SCHOOLS. JournalNX - A Multidisciplinary Peer Reviewed Journal, 760–762. Retrieved from https://repo.journalnx.com/index.php/nx/article/view/3048