Wingfield, Sue Stewart; Black, Gregory S. (2005). "Active Versus Passive Course Designs: The Impact on Student Outcomes". Journal of Education for Business. 81 (2): 119–123. doi:10.3200/JOEB.81.2.119-128. S2CID62647928.
Wingfield, Sue Stewart; Black, Gregory S. (2005). "Active Versus Passive Course Designs: The Impact on Student Outcomes". Journal of Education for Business. 81 (2): 119–123. doi:10.3200/JOEB.81.2.119-128. S2CID62647928.