Felysia, F.L. and Oktavia, T. 2026. Enhancing Trust in Digital Procurement: The Role of E-Signature and Information Quality in Billing System Adoption among SMEs. International Journal of Advances in Data and Information Systems. 7, 2 (Aug. 2026), 635–644. DOI:https://doi.org/10.59395/ijadis.v7i2.1555.