Munandar, Musthafa Haris, Syaiful Zuhri Harahap, Masrizal, Rahma Muti ah, and Yeni Syahfutri S. (2020) 2020. “Design of Online Library Information System at Sei Kamah Village Hall I”. Jurnal Mantik 4 (3):2023-27. https://doi.org/10.35335/mantik.Vol4.2020.1061.pp2023-2027.