@article{udeani2012,
  title={The effect of concept mapping instructional strategy on the biology achievement of senior secondary school slow learners},
  author={Uchenna Udeani and Philomena N. Okafor},
  year={2012},
  url={https://knowledgetrend.com/paper/the-effect-of-concept-mapping-instructional-strategy-on-the-biology-achievement-of-senior-secondary-school-slow-learners}
}