Suwandi, Suwandi. “Pengembangan Profesi Guru Melalui Karya Tulis Ilmiah”. Jurnal Ilmiah Guru Caraka Olah Pikir Edukatif 10, no. 01 (March 7, 2006). Accessed May 9, 2025. https://journal.uny.ac.id/index.php/cope/article/view/5495.