Fauziah, S., & Azizah, N. (2026). Marketing Strategy For Postal Services Using Servqual And Importance–Performance Analysis (IPA) To Improve Market Competitiveness At Pt. Pos Indonesia Tulungagung. EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi Dan Bisnis, 14(2), 1567-1580. https://doi.org/10.37676/ekombis.v14i2.9402