Surbakti, Siera, et al. “Geolocation Microservices Integration Framework for Real-Time Geolocation-Based Immigration Surveillance Support Using UML and the Sidecar Pattern”. IPTEK The Journal for Technology and Science, vol. 37, no. 2, Aug. 2026, pp. 141-60, doi:10.12962/j20882033.v37i2.9783.