Socrates, J. B. (1983). The impact system of mass primary education. SEAMEO Regional Center for Educational Innovation and Technology.
Chicago-referens (17:e uppl.)Socrates, Jose B. The Impact System of Mass Primary Education. Quezon City, Philippines: SEAMEO Regional Center for Educational Innovation and Technology, 1983.
MLA-referens (9:e uppl.)Socrates, Jose B. The Impact System of Mass Primary Education. SEAMEO Regional Center for Educational Innovation and Technology, 1983.
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