S، KATZ؛ FORD A B؛ MOSKOWITZ R W؛ JACKSON B A؛ JAFFE M W (1963). "STUDIES OF ILLNESS IN THE AGED. THE INDEX OF ADL: A STANDARDIZED MEASURE OF BIOLOGICAL AND PSYCHOSOCIAL FUNCTION". Journal of the American Medical Association. ج. 185: 914. DOI:10.1001/jama.1963.03060120024016.