Aristovnik, Aleksander, and Alka Obadić. “Measuring Relative Efficiency of Secondary Education in Selected EU and OECD Countries: The Case of Slovenia and Croatia”. Technological and Economic Development of Economy 20, no. 3 (October 3, 2014): 419-433. Accessed July 2, 2024. https://aviation.vgtu.lt/index.php/TEDE/article/view/3423.