“PENGARUH KUALITAS PELAYANAN, KUALITAS PRODUK, PROMOSI DAN HARGA TERHADAP KEPUTUSAN PEMBELIAN DI TOKO SHAFA COSMETICS AMUNTAI”. 2025. Journal of Development Administrations Thinking Understand: Public and Business Administration (DATU) 1 (2): 20-32. https://doi.org/10.36658/datu.v1.i2.904.