Purwanto MB, Umar, Al Firdaus MM. Analysis of Students’ Learning Motivation: Psychometric Parameters Study of Learning English Courses in the Business Travel Department. Metathesis J. English Lang. Lit. Teach. [Internet]. 2023 Apr. 30 [cited 2024 Jul. 3];7(1):86-9. Available from: https://journal.untidar.ac.id/index.php/metathesis/article/view/414