Marchuk, Igor. “LOGISTICS PERFORMANCE INDEX (LPI) AND ITS RELATIONSHIP WITH MAIN ECONOMIC INDICATORS AND INDEXES”. Science Notes of KROK University, no. 1 (61) (March 2, 2021): 47–57. Accessed November 11, 2026. https://snku.krok.edu.ua/index.php/vcheni-zapiski-universitetu-krok/article/view/372.