Kubo KY, Iinuma M, Chen H. Mastication as a Stress-Coping Behavior. Biomed Res Int. 2015;2015:876409. doi: 10.1155/2015/876409. Epub 2015 May 18. PMID: 26090453; PMCID: PMC4450283
Quest, Bradley W. "Oral health benefits of a daily dental chew in dogs." Journal of veterinary dentistry 30, no. 2 (2013): 84-87.
Ruamsap, P., S. Lertworasirikul, H. Rimkeeree, and T. Suwonsichon. "Product development of dental dog chew." In The Proceedings of the 44th Kasetsart University Annual Conference, Kasetsart, 30-January-2 February, 2006. Subject: Agro-industry, Economics, Business Administration, pp. 316-323. Kasetsart University, 2006.
Freeman, Lisa M., Nicol Janecko, and J. Scott Weese. "Nutritional and microbial analysis of bully sticks and survey of opinions about pet treats." The Canadian Veterinary Journal 54, no. 1 (2013): 50.
Arhant, Christine, Rebecca Winkelmann, and Josef Troxler. "Chewing behaviour in dogs–A survey-based exploratory study." Applied Animal Behaviour Science 241 (2021): 105372.
June, TB Thompson DVM. "Vet-Recommended Dog Food for Bad Teeth."
Cohen, Hsin-Yi. "The risk of bones." Veterinary Nursing Journal 21, no. 12 (2006): 21-22.