Muhyi, M., M. Hanafi, A. Asgi Sukmana, I. G. Darma Utamayasa, and B. . Rangga Prastyana. “The Effectiveness of Krwanjang Game Implementation on Sepak sila’s Skills in Sepak Takraw Game at Surabaya Sepak Takraw Academy”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran, vol. 7, no. 3, Dec. 2021, pp. 367-7, doi:10.29407/js_unpgri.v7i3.16148.