N. W. P. Sakti, R. Yusuf, A. Suriatno, and J. Irmansyah, “Scientific Method in Physical Education Learning: A Cross-Sectional Study”, J. Penelit. dan. Pengkaj. Ilmu. Pendidik. e-Saintika, vol. 5, no. 3, pp. 212–226, Nov. 2021.