K.-H. Kim, H.-J. Jeong, G.-H. Koo, and C.-H. Yang, “Effects on EMG Response of Lower limb and Heart Rate of walking in the water on Different Water Depth*”, IJET, vol. 8, no. 1.4, pp. 222–227, Jan. 2019, doi: 10.14419/ijet.v8i1.4.25231.