Carrillo, M. ., A. G. . Sparks, and N. U. . Salcedo. “Social Power of Preadolescent Children on Influence in Their mothers’ Purchasing Behavior Initial Study in Peruvian Toy Stores”. Journal of Economics, Finance and Administrative Science, vol. 23, no. 45, July 2018, pp. 150-66, https://revistas.esan.edu.pe/index.php/jefas/article/view/102.