Putriaji Hendikawati and Anisa Oktaviani 2026. Calendar Variation Time Series Analysis for Forecasting the Number of Domestic Passengers of Juanda International Airport Surabaya. Jurnal Matematika UNAND. 15, 3 (Jul. 2026), 302–318. DOI:https://doi.org/10.25077/jmua.15.3.302-318.2026.