@article{jegede1990,
  title={The effect of concept mapping on students' anxiety and achievement in biology},
  author={Olugbemiro J. Jegede and Folusho F. Alaiyemola and Peter Akinsola Okebukola},
  year={1990},
  journal={Journal of Research in Science Teaching},
  doi={10.1002/tea.3660271004},
  url={https://doi.org/10.1002/tea.3660271004}
}