Team, S. “Note on ‘Modified Alpha-Psi-Contractive Mappings With Applications’: Maher Berzig, Erdal Karapinar”. Thai Journal of Mathematics, vol. 13, no. 1, Apr. 2015, pp. 147-52, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/497.