Frone, Simona, and Dumitru Florin Frone. “ISSUES OF EFFICIENCY FOR PUBLIC-PRIVATE PARTNERSHIPS IN THE WATER SECTOR”.
Studies and Scientific Researches. Economics Edition, no. 27 (July 31, 2018). Accessed May 9, 2025.
https://sceco.ub.ro/index.php/SCECO/article/view/413.