Pongsakorn Yotkaew. (2017) Some nonlinear problems in a complete geodesic space with curvature bounded above. Khon Kaen University:ม.ป.ท.Pongsakorn Yotkaew. 2017. Some nonlinear problems in a complete geodesic space with curvature bounded above. ม.ป.ท.:Khon Kaen University;Pongsakorn Yotkaew. Some nonlinear problems in a complete geodesic space with curvature bounded above. ม.ป.ท.:Khon Kaen University, 2017. Print.