Affective impact of navigational and signaling aids to e-learning

@article{Sung2012AffectiveIO,
  title={Affective impact of navigational and signaling aids to e-learning},
  author={Eunmo Sung and Richard E. Mayer},
  journal={Computers in Human Behavior},
  year={2012},
  volume={28},
  pages={473-483}
}