Alhamidi, R. Asmara, E. Iswandy, and A. Budiman. “Rancang Bangun Sistem Kehadiran Berbasis Mapping Location”. SAINS DAN INFORMATIKA : RESEARCH OF SCIENCE AND INFORMATIC, vol. 8, no. 2, Nov. 2022, pp. 137-43, doi:10.22216/jsi.v8i2.1779.