TARIGAN, Reky Wijayandaru; SIREGAR, Irwansyah. Development of Electronic Soccer Goalkeeper Reaction Speed Training Equipment 2020. Jurnal Pendidikan Jasmani (JPJ), [S. l.], v. 2, n. 2, p. 57–64, 2021. DOI: 10.55081/jpj.v2i2.234. Disponível em: https://jurnal.stokbinaguna.ac.id/index.php/JPJ/article/view/234. Acesso em: 7 oct. 2026.