IMPLEMENTASI BACKUP KONEKSI UJIAN BERBASIS KOMPUTER DI SMK PUTRA JAYA CENTRE BATAM. comasiejournal [Internet]. 2022 Nov. 2 [cited 2026 Oct. 6];7(4):148-5. Available from: https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/6106