“Perancangan Aplikasi E-Futsal Sports Berbasis Android Di Kota Batam”, Com, Engine, Sys, Sci, vol. 5, no. 2, hlm. 216–220, Jul 2020, Diakses: 31 Agustus 2026. [Daring]. Tersedia pada: https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/18882