Fahirah Nadrah Male, Zulaecha Ngiu, and Asmun W. Wantu, “Improving Student Learning Outcomes in PPKn Subjects Through Differentiated Learning Methods Among Class XI-12 Students at State Senior High School 3 of Gorontalo City”, Journal.Polahi, vol. 4, no. 1, pp. 92–104, Mar. 2026.