Dwikesumasari, P.R. and Nugraha, R.D. 2019. Event Sponsorship Service Quality at PT Sinar Sosro East Java Region: A Gap Analysis. TIJAB (The International Journal of Applied Business). 3, 2 (Dec. 2019), 73–86. DOI:https://doi.org/10.20473/tijab.V3.I2.2019.73-86.