Novelia, S., E. Sutrisna, and M. Mandataris. “Effect Service Quality and Promotion on Consumer Satisfaction Toyota Agya Sutomo Pekanbaru”. ProBisnis : Jurnal Manajemen, vol. 16, no. 3, June 2025, pp. 258-65, https://ejournal.joninstitute.org/index.php/ProBisnis/article/view/952.