Lenny R, Purnomo W, Radiafilsan C. MANAJEMEN EKSTRAKURIKULER DUTA SEKOLAH. EEJ [Internet]. 2023 Mar. 20 [cited 2024 Aug. 31];5(1):7-13. Available from: https://e-journal.upr.ac.id/index.php/eej/article/view/8285