Sugiyono, Sugiyono. “The Evaluation of Facilities and Infrastructure Standards Achievement of Vocational High School in the Special Region of Yogyakarta”. Jurnal Penelitian dan Evaluasi Pendidikan 25, no. 2 (December 31, 2021): 207–217. Accessed May 3, 2025. https://journal.uny.ac.id/index.php/jpep/article/view/46002.