Nur Anggraini Rizki, Maryono. ANALYSIS OF STUDENT’S FAULT BASED ON WATSON’S CRITERIA FOR SOLVING THE PROBLEM OF COMPOSITIONAL FUNCTION AND INVERS FUNCTION VIEWED FROM THE LEVEL STUDENT MATHEMATICS ABILITY IN THE CLASS OF XI TKJ-2 SMK SORE TULUNGAGUNG. INCOILS [Internet]. 2023 Jan. 18 [cited 2025 Nov. 25];2(1). Available from: https://incoils.or.id/index.php/INCOILS/article/view/41