Khalaf, Hameed, and Waleed Fayhan. “The Impact of the (REACT) Strategy Using Small Groups Style on Attention Intensity and Learning Basic Tennis Skills for Students”. Pubmedia Jurnal Pendidikan Olahraga, vol. 3, no. 3, Mar. 2026, p. 14, doi:10.47134/jpo.v3i3.2472.