“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” (2022) JOINCS (Journal of Informatics, Network, and Computer Science), 5(2), pp. 35–38. doi:10.21070/joincs.v5i2.1601.