TY  - RPRT
TI  - Programed instruction--a challenge for nursing.
AU  - P Porter
PY  - 1966
DO  - 10.1111/j.1744-6198.1966.tb00347.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5178881/
ID  - 5178881
ER  -