Riyadi, S. ., & 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), 35–38. https://doi.org/10.21070/joincs.v5i2.1601