Irgashova Shalola, and Parmanova Nargiza. “ADVANTAGES OF PORTFOLIO APPROACH IN DEVELOPMENT OF TEACHER AND TEACHER COMPETENCIES”. JournalNX - A Multidisciplinary Peer Reviewed Journal (February 15, 2021): 1052–1056. Accessed January 10, 2025. https://repo.journalnx.com/index.php/nx/article/view/1751.