Attapol Kaewkhao. 2008. Set-valued analysis and geometric conditions. Chon Buri:Burapha University;
Attapol Kaewkhao. (2008) Set-valued analysis and geometric conditions (รายงานผลงานวิจัย). Burapha University:Chon Buri.
Attapol Kaewkhao. Set-valued analysis and geometric conditions. Chon Buri:Burapha University, 2008.
Attapol Kaewkhao. (2008) Set-valued analysis and geometric conditions (รายงานผลงานวิจัย). Burapha University:Chon Buri.