Susanto, H. ., & Sriyono. (2026). THE INFLUENCE OF PROFESSIONALISM, WORK CULTURE, AND DISCIPLINE ON SERVICE PERFORMANCE IN SIDOARJO REGENCY WITH APPRECIATION AS AN INTERVENING VARIABLE. International Journal of Economic Integration and Regional Competitiveness, 3(2), 47-73. https://doi.org/10.61796/ijeirc.v3i2.499