Lutfiani, Ninda, Untung Rahardja, and Kartika Trissanti Khasanah. “The Development Viewboard As an Information Media at Official Site Asosiation”. APTISI Transactions on Management (ATM) 6, no. 1 (January 8, 2022): 10–18. Accessed May 25, 2022. https://ijc.ilearning.co/index.php/ATM/article/view/1529.