நூலகம்> தேசிய கல்வி நிறுவகம்
(1998). අපටත් අධ්යාපනය. : Ministry of Social Services.
1998. අපටත් අධ්යාපනය. : Ministry of Social Services.
අපටත් අධ්යාපනය. : Ministry of Social Services. 1998.
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