Nasution SD, Hasibuan NA. Penerapan Protocol Data Unit Pada Short Message Service Hasil Studi Mahasiswa (Studi Kasus : STMIK Budi Darma Medan). remik [Internet]. 2019Feb.23 [cited 2024Jul.16];1(1):55-9. Available from: https://jurnal.polgan.ac.id/index.php/remik/article/view/10040