TY  - RPRT
TI  - Conventional vs. systems and linear vs. intrinsic models for developing self-instructional materials for health education.
AU  - T Hurt
PY  - 1972
DO  - 10.1111/j.1746-1561.1972.tb00976.x
UR  - https://pubmed.ncbi.nlm.nih.gov/4484606/
ID  - 4484606
ER  -