TY  - RPRT
TI  - Problem-based learning packages: considerations for neophyte package writers.
AU  - C Hengstberger-Sims
AU  - M A McMillan
PY  - 1993
DO  - 10.1016/0260-6917(93)90013-r
UR  - https://pubmed.ncbi.nlm.nih.gov/8455545/
ID  - 8455545
ER  -