1ESLAMI E, BASSIR SH, SADR-ESHKEVARI P. Current state of the effectiveness of problem-based learning in prosthodontics: A systematic review [J]. J Dent Educ,2014,78(5) :723-734.
2ASAD M, IQBAL K, SABIR M. Effectiveness of problem based learning as a strategy to foster problem solving and critical reasoning skills among medical students[J]. J Ayub Med college Coll Abbottabad,2015, 27 (3) : 604-607.