1. Alvarez-Martinez, M. & Polo, C. (2018). The cost of public deficit in Spain: Increasing tax rates and reducing public spending. El Trimestre Economico, 85(340), 833-858. doi: 10.20430/etev85i340.521;
2. Amin, A., Chen, Y. & Huang, S. (2018). Personal Income Tax and Economic Growth: A Comparative Study Between China and Pakistan. Asian Journal of Economic Modelling, 6(1), 65-73. doi: 10.18488/journal.8.2018.61.65.73;
3. Arsić, M. (2013, decembar). Fiscal policy and recovery of the Serbian economy. Challenges for Serbia's economic policy in 2013 (pp. 9-27). Belgrade, Serbia: Faculty of Economics (in Serbian) Retrieved from http://ndes.ekof.bg.ac.rs/downloadsakta/zbornik2012deo3.pdf#page=9;
4. Bacho, R., Pukala, R., Hlibko, S., Vnukova, N. & Pola, P. (2019). Information Management: the Key Driver of the Economic System's Development. Marketing and Management Innovations, 3, 297-307. doi: 10.21272/mmi.2019.3-23;
5. Barreix, A., Benítez, J. C., & Pecho, M. (2017). Revisiting personal income tax in Latin America: Evolution and impact. OECD Development Centre, Working Paper No. 338 Retrieved from https://www.ciat.org/Biblioteca/Estudios/2017_Personal _Income_Tax_LA_WP_338_OECD.pdf;