Apriyanto, Ade, Muhammad Sholeh, and Wawan Setiawardani. 2025. “Management of Teacher Discipline Development Through a Web-Based QR Code Attendance System With WhatsApp E-Notifications at SMK (Vocational School) Nahdlatul Ulama (NU) Kaplongan Indramayu”. Journal of General Education and Humanities 4 (4). Bandung, Indonesia:1949-62. https://doi.org/10.58421/gehu.v4i4.761.