McPherson, Edwin M. Pharmaceutical Manufacturing Encyclopedia. 3rd. Burlington: Elsevier. 2007: 1680. ISBN 9780815518563. (原始内容存档于2015-12-08). WHO Model
Harris, Randall E. Epidemiology of chronic disease: global perspectives. Burlington, MA: Jones & Bartlett Learning. 2013: 682. ISBN 9780763780470. Organization