TY  - RPRT
TI  - Problem-based education in Gezira, Sudan.
AU  - B Hamad
PY  - 1985
DO  - 10.1111/j.1365-2923.1985.tb01337.x
UR  - https://pubmed.ncbi.nlm.nih.gov/4058333/
ID  - 4058333
ER  -