Purwastuti LA, Kuntoro SA, Siswoyo D. National education ideology as the orientation of the school culture development policy at SMA N 1 and SMA N 3 Yogyakarta. jppfa [Internet]. 2017 Sep. 5 [cited 2025 May 10];5(1):32-41. Available from: https://journal.uny.ac.id/index.php/jppfa/article/view/14755