GandasariMaharani Fatima, YosikaGhana Firsta, Erna Yantiningsih, and Firman AnnurMuhammad. 2023. “Development of Tennis Achievements by Using Half the Competition”. GANDRUNG: Jurnal Pengabdian Kepada Masyarakat 4 (2), 1195-99. https://ejournal.unibabwi.ac.id/index.php/gandrung/article/view/2851.