Riyadi, S. . and Astutik, I. R. I. . (2022) “Design and Build a Web-Based Guestbook Case Study Gresik Regency Education Office: Rancang Bangun Buku Tamu Berbasis Web Studi Kasus Dinas Pendidikan Kabupaten Gresik”, JOINCS (Journal of Informatics, Network, and Computer Science), 5(2), pp. 35–38. doi: 10.21070/joincs.v5i2.1601.