Pengaruh Harga dan Promosi Terhadap Keputusan Pembelian Sepeda Motor Merek Yamaha. EBIS [Internet]. 2013 Jul. 26 [cited 2025 Aug. 30];3(2):9-16. Available from: https://ebis-jurnal.unsuri.ac.id/index.php/ebis/article/view/92