Ravisafitra, Lalu Ryan, and Rina Dewi Indahsari. “The Design of the SBMPTN Tryout System on the Official Website of the Tutoring Institute “Road to PTN”: Perancangan Sistem Tryout Sbmptn Pada Official Website Lembaga Bimbingan Belajar ‘Road To PTN’”. Procedia of Engineering and Life Science 1, no. 2 (August 30, 2021). Accessed July 1, 2025. https://pels.umsida.ac.id/index.php/PELS/article/view/1126.