Tias, R. F. .; Hamidah, M. N. .; Arizal, A. .; Setyatama, F. . Smart School Management System of Presence Monitoring Teacher As A Realtime With Rad (Rapid Application Development) Method at Khadijah High School Surabaya. J. Electr. Eng. Comput. Sci. 2021, 6, 999-1004.