JESSICA, Jessica; HANSUN, Seng. Forecasting Motorcycle Sales Using Nearest Symmetric Trapezoidal Fuzzy Number. Ultimatics : Jurnal Teknik Informatika, [S. l.], v. 8, n. 2, p. 75–82, 2016. DOI: 10.31937/ti.v8i2.515. Disponível em: https://ejournals.umn.ac.id/index.php/TI/article/view/515. Acesso em: 18 may. 2025.