Nhung, T., and N. Do. “An Extension of Vroom’s Expectancy Theory (1964) in Examining Lecturers’ Motivation in Vietnam”. VNUHCM Journal of Economics, Business and Law, Vol. 4, no. 1, Mar. 2020, pp. 490-9, doi:https://doi.org/10.32508/stdjelm.v4i1.592.