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), 35-38. https://doi.org/10.21070/joincs.v5i2.1601