Alomiear, M. and Alreshidi, A. (2021) “Teachers’ Characteristics and their Effect on Students’ Mathematical Achievement in the 4th grade: A Comparative Study between Saudi Arabia and the United States of America according to (TIMSS 2019)”, International Journal of research in Educational Sciences, 5(1), pp. 91 - 128. Available at: https://iafh.net/index.php/IJRES/article/view/329 (Accessed: 19April2024).