Br Samosir, Mutiara, Rahel Marianti Ritonga, Febriani Naibaho, and Ibnu Rasyid Munthe. “Design Whatsapp Gateway Admissions for New Students at Labuhanbatu University During The Pandemic”. Jurnal Mantik 5, no. 2 (June 15, 2021): 848-854. Accessed July 30, 2026. https://www.ejournal.iocscience.org/index.php/mantik/article/view/1408.