Martins, Maria de Fátima, et al. “Degree of Attachment to Pet Owners According to the Lexington Attachment to Pets Scale”. Brazilian Journal of Veterinary Research and Animal Science, vol. 50, no. 5, Oct. 2013, pp. 364-9, https://doi.org/10.11606/issn.2318-3659.v50i5p364-369.