[1]
P. S. Sari, H. Hartati, M. Usra, I. Iyakrus, and D. Destriana, “Development Of Microcontroller Based Punch Speed Measurements Tool Of Karate Athlete”, J. Ilm. Pendidik. Jasm, vol. 5, no. 2, pp. 335–345, Jun. 2021.