Putri Renata, Olivia, and Tomy Agung Sugito. “Analysis of Vokal Learning Strategies in Increasing the Cohesiveness of Harmony Of MAN 1 Mojokerto Extracurricular Group”. Jurnal Sendratasik, vol. 15, no. 3, Aug. 2026, pp. 253-67, https://doi.org/10.24036/jsu.v15i3.110.