Ušpurienė, Ana, Leonidas Sakalauskas, Saverio Giuliani, and Carlo Meloni. “ABC Model for Economic Development of a Firm”. Technological and Economic Development of Economy 22, no. 4 (June 27, 2016): 512-531. Accessed December 2, 2024. https://aviation.vgtu.lt/index.php/TEDE/article/view/736.