Maharani, Mega Selvi, and Nur Hidayanto Pancoro Setyo Putro. “Evaluation of TOEFL Preparation Course Program to Improve students’ Test Score”. Jurnal Penelitian dan Evaluasi Pendidikan 25, no. 1 (June 30, 2021): 63–76. Accessed May 6, 2025. https://journal.uny.ac.id/index.php/jpep/article/view/39375.