«INTERNATIONAL EXPERIENCE IN MARKETING MANAGEMENT AND PRODUCTION EFFICIENCY IMPROVEMENT: LEAN MANAGEMENT AND THE REFA METHOD», PST Journal, т. 1, вып. 1, сс. 3–5, апр. 2026, просмотрено: авг. 12, 2026. доступно на: https://pstjournal.picllc.uz/index.php/pst/article/view/104