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Nasution, A.A., Baginda Harahap, Zuriani Ritonga and Nurjannah 2022. The Influence of Product Quality, Promotion and Design on Purchase Decisions for Yamaha Nmax Motor Vehicles SPSS Application Based. International Journal of Economics (IJEC). 1, 1 (Jun. 2022), 01–13. DOI:https://doi.org/10.55299/ijec.v1i1.67.