Dhoni Arga Hasibuan, Sapto Adi, Nanang Tri Wahyudi, and Slamet Raharjo, “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”, NS, vol. 1, no. 04, pp. 166–176, Nov. 2023.