HARAHAP, Ahmad Rizky; ZEBUA, Yuniman; IHSAN, Muhammad Ali Al. The Effect of Service Quality, Product Quality, Promotion and Price on the Purchase Decision of Motorcycles in the Indah Sakti Showroom. Quantitative Economics and Management Studies, [S. l.], v. 4, n. 3, p. 532–543, 2023. DOI: 10.35877/454RI.qems1638. Disponível em: https://qemsjournal.org/index.php/qems/article/view/1638. Acesso em: 5 may. 2026.