anas irwan dan A. P. S. Kerans, “ANALISIS KUALITAS SOAL THREE TIER TEST MENGGUNAKAN TEORI RESPON BUTIR KLASIK : QUALITY ANALYSIS OF THREE TIER TEST QUESTIONS FINAL SEMESTER EXAMS OF BASIC PHYSICS COURSES USING CLASSICAL ITEM RESPONSE THEORY ”, JPF, vol. 10, no. 2, hlm. 130-137, Agu 2022.