M. H. Siregar, Syaiful Zuhri Harahap, Musthafa Haris Munandar, Masrizal, Ade Parlaungan Nasution, and Yudi Triyanto, “Web-Based School Payment Information System for Public High School 2 Kampung Rakyat”, Mantik, vol. 4, no. 4, pp. 2411-2415, Jan. 2021.