Pengaruh kegiatan ekstrakurikuler palang merah remaja terhadap prestasi siswa di SMPN 20 Kota Bengkulu. J. Pend. A. Isl. Ind [Internet]. 2020 Feb. 29 [cited 2026 Jun. 3];1(1):9-22. Available from: https://cahaya-ic.com/index.php/JPAII/article/view/61