IRMAK KARAKAYA, F., and E. ARIKAN ÖZTÜRK. “HIGH-SPEED RAILWAY (YHD) DEVELOPMENT, INCOME-EXPENSE STATUS AND COST COVERAGE CAPACITY IN TURKEY”. Atlas Journal, vol. 7, no. 43, July 2021, pp. 2052-65, https://atlasjournal.net/index.php/atlas/article/view/458.