Valeri Kusumadewi , C., Farhan Aditya, A., & Kristaung, R. (2024). Pengaruh product quality, price dan advertisement terhadap purchase decision smartphone merek samsung dan iphone. Jurnal Riset Pendidikan Ekonomi, 9(1), 51–56. https://doi.org/10.21067/jrpe.v9i1.9075