Alam, Bima Tangguh, Harry Pramono, and Rumini Rumini. 2019. “Development of Multifunctional Futsal Goal Posts for Physical Education Learning in Elementary Schools, Selosari Village, Kediri Regency”. Journal of Physical Education and Sports 8 (2), 187-92. https://journal.unnes.ac.id/sju/jpes/article/view/30180.