Boston, R. E. (1972). How to write and use performance objectives to individualize instruction. Educational Technology Publications.
Chicago-viite (17. p.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Englewood Cliffs, N. J.: Educational Technology Publications, 1972.
MLA-viite (8. p.)Boston, Robert E. How to Write and Use Performance Objectives to Individualize Instruction. Educational Technology Publications, 1972.
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