Shcherbyna, Veronika, Yuliya Navrozova, and Maryna Matviienko. 2018. “Outsourcing of Port Operator Business Processes: The Case of State Enterprise “commercial Sea Port “chornomorsk”””. International Journal of Engineering & Technology 7 (4): 6344-50. https://doi.org/10.14419/ijet.v7i4.29500.