Kazakov, Stefan. “ANALYSIS OF LOGISTIC EFFICIENCY: ANALYSIS OF LOGISTIC EFFICIENCY”. JOURNAL SCIENTIFIC AND APPLIED RESEARCH 18, no. 1 (March 23, 2023): 41–47. Accessed April 10, 2025. https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/278.