<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Praphakorn Sojisunsanee และผู้แต่งคนอื่นๆ. (2009) Investigation on controlling parameters on zonal gas production of multilayer system. Chulalongkorn University:ม.ป.ท.</APA><Chicago>Praphakorn Sojisunsanee และผู้แต่งคนอื่นๆ. 2009. Investigation on controlling parameters on zonal gas production of multilayer system. ม.ป.ท.:Chulalongkorn University;</Chicago><MLA>Praphakorn Sojisunsanee และผู้แต่งคนอื่นๆ.  Investigation on controlling parameters on zonal gas production of multilayer system.  ม.ป.ท.:Chulalongkorn University, 2009. Print.</MLA></bibliography></xml>
