Akbar, Rian Prasetia, et al. “THE INFLUENCE OF PROMOTION AND PRICE TOWARD PURCHASE DECISION OF USED CARS IN THE SHOWROOM MURDIK MOTOR PURWAKARTA REGENCY”. CENTRAL ASIA AND THE CAUCASUS, vol. 23, no. 1, Jan. 2022, pp. 3880-8, https://ca-c.org/CAC/index.php/cac/article/view/368.