Wardana, D.W. and Sutopo, J. 2026. Applying the Waterfall Method and Temporal Overlap Detection Algorithm in a Cross-Platform Badminton Court Booking Application. Bulletin of Computer Science Research. 6, 4 (Jun. 2026), 1249-1256. DOI:https://doi.org/10.47065/bulletincsr.v6i4.1062.