Астапова, Г. В. “Estimation of Solvency of Airenterprises-Borrowers in the Process of Their Corporate Co-Operating With Commercial Jars”. Proceedings of National Aviation University 55, no. 2 (July 1, 2013): 246–250. Accessed May 17, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/5478.