Balol, Wirawan, and ’ Sunyoto. “STUDI KELAYAKAN PENDIRIAN FASILITAS INDOOR SOCCER DI JANTI KECAMATAN SUKUN - KOTA MALANG”. SISTEM Jurnal Ilmu Ilmu Teknik 14, no. 2 (August 1, 2018): 1 - 17. Accessed June 25, 2025. https://sistem.wisnuwardhana.ac.id/index.php/sistem/article/view/157.