Erturan, Mahmut Burak, ve Fahriye Merdivenci. 2021. “LPI Based Two Stage Network DEA Model to Measure Logistics Efficiency: An Application on OECD Countries”. İşletme Araştırmaları Dergisi 13 (2):1187-99. https://doi.org/10.20491/isarder.2021.1192.