“Pengaruh Harga Dan Ekuitas Merek Terhadap Keputusan Pembelian Handphone Merek Blackberry Di Kota Surabaya”. Jurnal Ekonomi dan Bisnis 1, no. 1 (January 28, 2011): 48–56. Accessed August 31, 2025. https://ebis-jurnal.unsuri.ac.id/index.php/ebis/article/view/7.