Team, Support. “A Distance Between Two Points and Nearest Points in a Metric Space of Curvature Bounded Below: Areeyuth Sama-Ae, Aniruth Phon-On, Nifatamah Makaje, Areena Hazanee”. Thai Journal of Mathematics (March 31, 2022): 229–239. Accessed May 14, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1302.