INTERNATIONAL EXPERIENCE IN MARKETING MANAGEMENT AND PRODUCTION EFFICIENCY IMPROVEMENT: LEAN MANAGEMENT AND THE REFA METHOD. PST Journal [Интернет]. 7 апрель 2026 г. [цитируется по 12 август 2026 г.];1(1):3-5. доступно на: https://pstjournal.picllc.uz/index.php/pst/article/view/104