“PENGARUH KUALITAS PRODUK, BRAND AMBASSADOR, BRAND IMAGE DAN BRAND AWARENESS TERHADAP KEPUTUSAN PEMBELIAN ULTRA MILK X STRAY KIDS DI KOTA YOGYAKARTA”, Efektif, vol. 15, no. 1 Juni, pp. 63–87, Jul. 2024, doi: 10.37159/Efektif2024.Vol15.No1.006.