Lunis, Natalie. Chihuahua: Señor Tiny. Bearport Publishing, 2009.
Hart, Ernest Huntley. "Encyclopedia of dog breeds." (1968).
Keller, Ninette, Linda S. Jacobson, Mirinda Nel, Marizelle de Clerq, Peter N. Thompson, and Johan P. Schoeman. "Prevalence and risk factors of hypoglycemia in virulent canine babesiosis." Journal of Veterinary Internal Medicine 18, no. 3 (2004): 265-270.
Klinhom, Sarisa, Trustchada Chaichit, and Korakot Nganvongpanit. "A comparative study of range of motion of forelimb and hind limb in walk pattern and Trot pattern of Chihuahua dogs affected and non-affected with patellar luxation." Asian J Anim Vet Adv 10, no. 6 (2015): 247-59.
Kuwamura, M., R. Hattori, J. Yamate, T. Kotani, and K. Sasai. "Neuronal ceroid‐lipofuscinosis and hydrocephalus in a chihuahua." Journal of small animal practice 44, no. 5 (2003): 227-230.
Aron, Elaine N. "The impact of adult temperament on closeness and intimacy." Handbook of closeness and intimacy (2004): 267-283.
Case, Linda P. The dog: its behavior, nutrition, and health. John Wiley & Sons, 2013.