Student evaluation of the impact of changes in teaching style on their learning: a mixed method longitudinal study oleh Susan Jones, Somasundari Gopalakrishnan, Charles A. Ameh, Brian Faragher, Betty Sam, Roderick R. Labicane, Hossinatu Kanu, Fatmata Dabo, Makally Mansary, Rugiatu Kanu, Nynke van den Broek