DJANIBEKOV ABDUSALOM. QUALIFICATION EDUCATION IN THE SYSTEM OF CONTINUOUS PROFESSIONAL DEVELOPMENT PROBLEMS OF ENSURING EFFICIENCY. International Engineering Journal For Research & Development, [S. l.], v. 6, n. ISPCIEI, p. 3, 2021. DOI: 10.17605/OSF.IO/SEYKC. Disponível em: http://iejrd.com/index.php/iejrd/article/view/2158. Acesso em: 7 may. 2026.