McGraw-Hill,5 Littlefield,2 Mosby Elsevier,2 academic press,2 W. H. Freeman and company,2 Churchill Livingstone Elsevier,2 penguin random house UK,1 American Academy of pediatrics dan American Heart Association,1 cpsia1 Prentice-Hall,1 Company,1 Princeton university press,1 Merril,1 The dryden press,1 wikipedia articles1 Departemen Luar Negeri,1 Routledge,1 USA,1 prentice hall,1 First published,1