Sultanova Nigina Utkurovna. “INCREASING LABOR PRODUCTIVITY IN SERVICE ENTERPRISES BASED ON THE PRINCIPLES OF STAFF DEVELOPMENT”. JournalNX - A Multidisciplinary Peer Reviewed Journal (February 8, 2021): 277–281. Accessed January 7, 2025. https://repo.journalnx.com/index.php/nx/article/view/1426.