Handayani, S. G., S. Syahara, T. H. Sin, and A. Komaini. “Development of Android-Based Gymnastics Learning Media to Improve the Ability to Roll Ahead Straddle Students in Gymnastic Learning”. Linguistics and Culture Review, vol. 6, no. S3, Jan. 2022, pp. 275-90, doi:10.21744/lingcure.v6nS3.2144.