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 Majalah, Jurnal, Buletin
Howes, Mary B.
The psychology of human cognition: mainstream and genevan traditions
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The handbook of aging and cognition
edited by Fergus L.M. Craik, Timothy A. Salthouse
Lawrence Erlbaum, 1992
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Psychology and aging
American Psychological Association, Inc.,, 2018
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Kantowitz, Barry H.
Experimental psychology
Cengage Learning, 2015
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