Rajput, Sheraz, Fiza Qureshi, and Tariq Aziz. 2020. “Demographic Changes and Direct Tax Dynamics in OECD and Non-OECD Markets: A Revisit”. Asian Journal of Applied Economics 28 (1):1-17. https://so01.tci-thaijo.org/index.php/AEJ/article/view/243149.