@article{gambari2014,
  title={Improving Secondary School Students' Achievement and Retention in Biology Through Video-based Multimedia Instruction},
  author={Amosa Isiaka Gambari and Akawo Angwal Yaki, MEd and Eli S. Gana and Queen Eguono Ughovwa, MEd},
  year={2014},
  journal={DOAJ (DOAJ: Directory of Open Access Journals)},
  url={https://knowledgetrend.com/paper/improving-secondary-school-students-achievement-and-retention-in-biology-through-video-based-multimedia-instruction-2}
}