Харченко, В.П., В.О. Кучеренко, and О.О. Семенов. “Methodological Fundamentals of the Synthesis Management System of Quality of Granting of Services”. Proceedings of National Aviation University 26, no. 4 (April 1, 2005): 30–33. Accessed May 3, 2024. https://jrnl.nau.edu.ua/index.php/visnik/article/view/1224.