"FIMI: Certificazioni Archivio". FIMI. Retrieved January 14, 2019. Note: To retrieve the certifications, 1) type in Demi Lovato in the box of "Filtra", 2) select years in the box of "Anno", 3) select "Singoli online" in the box of "Sezione" for singles or "Album e compilation" for albums, 4) click Enter
"History" (in Italian). FIMI. Retrieved May 30, 2022. Set "Ricerca per" on "Artista/Band", then search "Demi Lovato" and click "Classifiche".
ifpi.no
"Troféoversikt". International Federation of the Phonographic Industry. April 17, 2020. Retrieved October 22, 2020.