Ganitaya igenima kerehi bandunu sadhaka kihipayak ganita sadhanayata dakvana sambandhaye svabhavaya pilibanda vistaratmaka adhyayanayak(ekolos vani sreniye sisya niyadiyak asurin)

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561481.pdf (480.97 KB)

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2012

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http://archive.cmb.ac.lk/handle/70130/3119

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Department of Social Science Education

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