(1964). Measurement procedures in programmed instruction [by] Richard E. Schutz, Robert L. Baker, and Vernon S. Gerlach.
Chicago-viite (17. p.)Measurement Procedures in Programmed Instruction [by] Richard E. Schutz, Robert L. Baker, and Vernon S. Gerlach. 1964.
MLA-viite (9. p.)Measurement Procedures in Programmed Instruction [by] Richard E. Schutz, Robert L. Baker, and Vernon S. Gerlach. 1964.
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