Abd El-Hamid El-Azzazy, Mustafa Mohamed, et al. “The Impact of Flipped Instruction on Enhancing EFL In-Service Teachers’ Professional Competences”. Journal of Neonatal Surgery, vol. 14, no. 14S, Apr. 2025, pp. 1014-26, https://jneonatalsurg.com/index.php/jns/article/view/10593.