Safitri, B., S. Nurhikmah, and P. D. Indriyani. “Kontribusi Kegiatan Ekstrakurikuler Paduan Suara Terhadap Peningkatan Prestasi Akademik Di Tingkat Sekolah Menengah: The Contribution of Choir Extracurricular Activities to Improving Academic Achievement at the Secondary School Level”. Kajian Pendidikan, Seni, Budaya, Sosial Dan Lingkungan, vol. 2, no. 2, Sept. 2025, pp. 126-39, doi:10.58881/kpsbsl.v2i2.108.