“Pengaruh Variasi Latihan Ladder Drill Terhadap Kelincahan Pemain Ekstrakurikuler Futsal SMA Negeri 6 Malang: The Effect of Ladder Drill Training Variations on the Agility of Futsal Extracurricular Players at SMA Negeri 6 Malang”. 2023. NUSANTARA SPORTA: Jurnal Pendidikan Dan Ilmu Keolahragaan 1 (04): 166-76. https://doi.org/10.2024/ns.v3i04.2025_P559-568.