Parsons, Brian Scott, and Orlando Rafael Gonzalez Gonzalez. “A Comparative Study of Mathematics Self-Efficacy and Anxiety Levels of Grades 10-12 Students at Thai Christian School Before and After Supplemental Practice Use of The Mathematics E-Learning Application Website Khan Academy”. Scholar: Human Sciences 10, no. 2 (December 27, 2018): 207. Accessed July 24, 2024.