Istikmal, Istikmal, Arif Indra Irawan, and Leanna Vidya Yovita. “PEMBUATAN DAN PELATIHAN PRESENSI GURU SLB CINTA ASIH MENGGUNAKAN QR CODE BERBASIS APLIKASI ANDROID”. The Proceeding of Community Service and Engagement (COSECANT) Seminar 3, no. 1 (January 18, 2024): 67–70. Accessed August 3, 2025. https://journals.telkomuniversity.ac.id/cosecant/article/view/7140.