<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Eakarin Wachirapanyanukul และผู้แต่งคนอื่นๆ. (2012) Thixotropic behavior of phpa mud system for managed pressure drilling. Chulalongkorn University:ม.ป.ท.</APA><Chicago>Eakarin Wachirapanyanukul และผู้แต่งคนอื่นๆ. 2012. Thixotropic behavior of phpa mud system for managed pressure drilling. ม.ป.ท.:Chulalongkorn University;</Chicago><MLA>Eakarin Wachirapanyanukul และผู้แต่งคนอื่นๆ.  Thixotropic behavior of phpa mud system for managed pressure drilling.  ม.ป.ท.:Chulalongkorn University, 2012. Print.</MLA></bibliography></xml>
