Muchamad Arif Al Ardha, et al. “Effectiveness of Implementing the Pickleball Sports Training Model for Middle Age People 45 – 54 Years Old Among Journalists in Surabaya”. International Journal of Educational Technology and Society, vol. 1, no. 2, Apr. 2024, pp. 74-81, doi:10.61132/ijets.v1i2.44.