TY  - RPRT
TI  - Are audiotapes cheaper than lectures?
AU  - L H Smaje
AU  - B Lynn
PY  - 1979
DO  - 10.1111/j.1365-2923.1979.tb00934.x
UR  - https://pubmed.ncbi.nlm.nih.gov/86148/
ID  - 86148
ER  -