Riyadi, S., and A. Kristiyanto. “PENJASORKES LEARNING AS A MEANS OF CHARACTER BUILDING (A REFLECTION OF PENJASORKES TEACHING-LEARNING PROCESSES AT SMPN KOTA SURAKARTA”. The Journal of Educational Development, Vol. 4, no. 2, Feb. 2017, pp. 127-35, https://journal.unnes.ac.id/sju/jed/article/view/12981.