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Diakses pada 12 Juni 2019Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/alzheimers-disease/symptoms-causes/syc-20350447
Diakses pada 12 Juni 2019WebMD. https://www.webmd.com/alzheimers/guide/alzheimers-and-dementia-whats-the-difference#1
Diakses pada 12 Juni 2019