Hartatik, H., and A. . Purnomo. “APPLICATION OF THE SIAKAD ONLINE SIKUM-K13 BASED ON WEB AND ANDROID MOBILE FOR ELEMENTARY SCHOOL TEACHERS”. International Journal of Engagement and Empowerment (IJE2), vol. 2, no. 3, Dec. 2022, pp. 326-31, doi:10.53067/ije2.v2i3.84.