Pasolo, Muhammad Ridhwansyah, Yana Ermawati, Yaya Sonjaya, and Sumartono Sumartono. “Towards Optimal Taxes: Impact of Tax Extensification and Intensification on Individual Income Tax Receipts”. Advances in Taxation Research 1, no. 2 (May 31, 2023): 94–104. Accessed October 9, 2025. https://advancesinresearch.id/index.php/ATR/article/view/104.