Beason, R., T. T. T. Tran, D. P. Dao, and H. M. Nguyen. “Insiders, Outsiders and Performance of Vietnamese Firms”. Gadjah Mada International Journal of Business, Vol. 24, no. 3, Oct. 2022, pp. 324-41, https://journal.ugm.ac.id/v3/gamaijb/article/view/15796.