Team, Support. 2015. “A Generalization of Ciric Quasi-Contractions for Maps on S-Metric Spaces: Nguyen Trung Hieu, Nguyen Thi Thanh Ly, Nguyen Van Dung”. Thai Journal of Mathematics 13 (2):369-80. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/515.