Breckenridge, Marian E. et al. Child Development: Physical and Psychologic Growth through Adolescence. - ed. 4. - Philadelphia: W.B.Saunders Company, 1963. - xiii, 648p. ilus, 24 cm. Subjects--Topical Terms: Anak--Perkembangan LC Class. No.: HQ772 / .B682 1949 Dewey Class. No.: 155.4