A puppy's primary socialization periods last from approximately 3 to 13 weeks of age. (fithound.com)
Because behavior issues arise due to lack of primary socialization and training when puppies are in their first three months. (houstonpettalk.com)
Sociology is one of those disciplines that can assist us to see «through» and «beyond» our primary socialization and to become more aware of our vested interests. (religion-online.org)