1. Assalco-Zoomark, 2017 Report—On the Feeding and Care of Petshttp://www.assalco.it/index.php?action=shownews&id=1&nid=6756
2. Istat (National Institut of Statistics) Annual Report 2017https://www.istat.it/it/files/2017/05/RapportoAnnuale2017.pdf
3. Human-Animal Bonds II: The Role of Pets in Family Systems and Family Therapy
4. Understanding dog–human companionship
5. The Benefits of Human–Companion Animal Interaction: A Review