   </f:facet> 
                                <h:outputLabel value="#{b.referenceBill.deptId}"/>
                            </p:column>
                            <p:column headerText="Referenace Institution" >
                                <f:facet name="header">  
                                    <h:outputLabel value="Referenace Institution"/>
                                </f:facet> 
                                <h:outputLabel value="#{b.referenceInstitution.name}"/>
                        