Team, Support. 2010. “Existence of Positive Solutions to a Second-Order Multi-Point Boundary Value Problem With Delay: Jongyi Chen, Jessada Tariboon, Sanoe Koonprasert”. Thai Journal of Mathematics 8 (4):21-32. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/232.