Amelia, T., dan J. Ismanto. “The Effect of Sales Tax on Luxury Goods (PPnBM), Value Added Tax (VAT), and Progressive Rates on Consumer Purchasing Power in Four-Wheeled Motor Vehicles”. Educoretax, vol. 5, no. 6, Agustus 2025, hlm. 754-6, doi:10.54957/educoretax.v5i6.1689.