F. Rachman, A. Prasetiyo, Z. Rahmat, T. Iskandar, and S. N. Sari, “PHYSICAL EDUCATION LEARNING MEDIA BASED ON TRADITIONAL SURAKARTA CHESS FOR CHARACTER EDUCATION AND NUMERACY IN ELEMENTARY SCHOOLS”, Penjaskesrek, vol. 13, no. 1, pp. 39–53, Apr. 2026.