Kartika Sari, Lufi. “An Analysis on Teachers’ Professional Competence at SMP Muhammadiyah 3 Gending Probolinggo”. Jurnal Kebijakan dan Pengembangan Pendidikan 2, no. 1 (February 24, 2014). Accessed November 22, 2024. https://ejournal.umm.ac.id/index.php/jkpp/article/view/1729.