V. Arinal, “Implementation of Android-Based Futsal Court Booking Application Using Flutter (Case Study: Futsal Hayani Kopti, West Cengkareng)”, Int. J. Softw. Eng. Comput. Sci., vol. 6, no. 1, pp. 34–43, Apr. 2026, doi: 10.35870/ijsecs.v6i1.6496.