FITRIANTONO, Muhammad Rusyanto, KRISTIYANTO, Agus and SISWANDARI, Siswandari. The Development Of Natural Potential Of Ponggok Village As Recreational Sports And Water Sports Tourism For Regional People In Klaten Regency. Journal of Education, Health and Sport. Online. 3 April 2019. Vol. 9, no. 4, pp. 220-230. [Accessed 27 December 2025].