Lockheed, M. E. (1991). Improving Primary education in developing countries. Univ. pr..
Chicago-viite (17. p.)Lockheed, Marlaine E. Improving Primary Education in Developing Countries. Oxford: Univ. pr., 1991.
MLA-viite (9. p.)Lockheed, Marlaine E. Improving Primary Education in Developing Countries. Univ. pr., 1991.
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