Mariati I. ANALISIS BUTIR SOAL DENGAN TEORI TES KLASIK (CLASSICAL TEST THEORY) DAN TEORI RESPONS BUTIR (ITEM RESPONSE THEORY) (Studi Kasus: Soal Ujian Olimpiade Sains Provinsi Bidang Informatika 2009). Pythagoras [Internet]. 2012 Feb. 24 [cited 2025 Jul. 19];5(2). Available from: https://journal.uny.ac.id/index.php/pythagoras/article/view/536