SAFRIZAL, Safrizal; BAHRI, Syamsul; JUMIARTI, Desri; HAKIMI, Musawer. Development of a validation system (SVeR) based on the open journal system for testing the validity of learning tools. Jurnal Inovasi Teknologi Pendidikan, [S. l.], v. 13, n. 2, p. 194–212, 2026. DOI: 10.21831/jitp.v13i2.95262. Disponível em: https://jurnal.uny.ac.id/index.php/jitp/article/view/95262. Acesso em: 7 sep. 2026.