B. Mamadaliyev and Arslanova Nodira Ikramjon qizi (2022) “ON THE INTRODUCTION OF THE THEORY OF REAL NUMBERS AT THE STAGES OF THE EDUCATIONAL SYSTEM”, JournalNX - A Multidisciplinary Peer Reviewed Journal, 8(12), pp. 129–134. doi: 10.17605/OSF.IO/R6VHM.