Camoiras-Rodríguez, , Z., and C. Varela-Neira,. “An Empirical Analysis of Factors Influencing Electronic Word of Mouth in Social Networking Sites After a Brand Promotion”. Revista Galega De Economía, Vol. 29, no. 1, May 2020, pp. 1-18, doi:10.15304/rge.29.1.6123.