Pengaruh Harga dan Promosi Terhadap Keputusan Pembelian Sepeda Motor Merek Yamaha. Jurnal Ekonomi dan Bisnis, [S. l.], v. 3, n. 2, p. 9–16, 2013. Disponível em: https://ebis-jurnal.unsuri.ac.id/index.php/ebis/article/view/92. Acesso em: 30 aug. 2025.