Tono Suwartono, Salasiah Ammade, Faisal Faisal, Nurhayati Nurhayati, Agus Saripudin, Nuraeningsih Nuraeningsih, Sukirno Sukirno, and Maulana Jefri. “The Impact of Extended Studying Time in the Full-Day School Program on Students’ EFL Learning Concentration”. Educational Administration: Theory and Practice, vol. 30, no. 4, Apr. 2024, pp. 4384-90, doi:10.53555/kuey.v30i4.2218.