<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Porjan Tuttipongsawat และผู้แต่งคนอื่นๆ. (2012) Infinite elastic layer under axisymmetric surface loads and influence of surface stresses. Chulalongkorn University:ม.ป.ท.</APA><Chicago>Porjan Tuttipongsawat และผู้แต่งคนอื่นๆ. 2012. Infinite elastic layer under axisymmetric surface loads and influence of surface stresses. ม.ป.ท.:Chulalongkorn University;</Chicago><MLA>Porjan Tuttipongsawat และผู้แต่งคนอื่นๆ.  Infinite elastic layer under axisymmetric surface loads and influence of surface stresses.  ม.ป.ท.:Chulalongkorn University, 2012. Print.</MLA></bibliography></xml>
