C. S. Senavirathna, A. P. Mallawaarachchi, A. L. Karunanayake, and S. . Gunawardena, “The effect of 6-week core stability training on core endurance and physical performance in professional rugby players: A randomized controlled pilot study”, Asian J Med Sci, vol. 12, no. 11, pp. 60–65, Nov. 2021.