Aslam Dafa Fauzan, Purwono Hendradi, D. Sasongko, Endah Ratna Arumi, and Emilya Ully Artha, “ Implementation of a Rule‑Based System to Identify Weekly Physical Activity Status in a Web Reporting Platform for Elementary Students ”, JESII, vol. 4, no. 1, pp. 51–58, Jun. 2026.