“PENGARUH KUALITAS PELAYANAN, KUALITAS PRODUK, PROMOSI DAN HARGA TERHADAP KEPUTUSAN PEMBELIAN DI TOKO SHAFA COSMETICS AMUNTAI”. Journal of Development Administrations Thinking Understand: Public and Business Administration (DATU) 1, no. 2 (February 7, 2025): 20–32. Accessed June 2, 2026. https://ejurnal.stiaamuntai.ac.id/index.php/datu/article/view/904.