INTERNATIONAL EXPERIENCE IN MARKETING MANAGEMENT AND PRODUCTION EFFICIENCY IMPROVEMENT: LEAN MANAGEMENT AND THE REFA METHOD. International scientific-electronic journal “Pioneering studies and theories”, [S. l.], v. 1, n. 1, p. 3–5, 2026. Disponível em: https://pstjournal.uz/index.php/pst/article/view/104. Acesso em: 7 jul. 2026.