Mohamed, K. A., M. E. El-Naggar, and G. S. Alazab. “Effectiveness of Gamified Cooperation and Competition in Blended Learning Environment for EFL Business Writing in TVET”. European Scientific Journal, ESJ, Vol. 20, no. 17, June 2024, p. 107, doi:10.19044/esj.2024.v20n17p107.