Tam, P. T., and B. Thi Bich Thuy. “Exploratory Factor Analysis Forthe Smes’ Exporting Activitiesin Southern Area of Vietnam”. Journal of Business Management and Economics, vol. 5, no. 12, Dec. 2017, pp. 01-07, doi:10.15520/jbme.2017.vol5.iss12.275.pp01-07.