Gandasari, Maharani Fatima, Ghana Firsta Yosika, Erna Yantiningsih, and Muhammad Firman Annur. 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.