Sari, Tiara Herlinda, Yundari Yundari, and Shantika Martha. “INTEGRATION OF QUADRATIC REGRESSION-ARIMA MODEL ESTIMATING AIR QUALITY INDEX ON PM2.5 CONCENTRATION”. BAREKENG: Jurnal Ilmu Matematika dan Terapan 20, no. 4 (August 24, 2026): 2825-2838. Accessed August 25, 2026. https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/21727.