«INTERNATIONAL EXPERIENCE IN MARKETING MANAGEMENT AND PRODUCTION EFFICIENCY IMPROVEMENT: LEAN MANAGEMENT AND THE REFA METHOD» (2026) International scientific-electronic journal “Pioneering studies and theories”, 1(1), сс. 3–5. доступно на: https://pstjournal.picllc.uz/index.php/pst/article/view/104 (просмотрено: 12 август 2026).