පර්යේෂණ
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Volume-6 No.1 - Jan. 2017
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National Assessment of Achievement of Students Completing Grade 4 in year 2013 |
National Assessment of Achievement of Students Completing Grade 8 in year 2014 | National Assessment of Achievement of Students Completing Grade 4 in year 2015 | National Assessment of Achievement of Students Completing Grade 8 in year 2016 |
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| National Assessment of Achievement of Students Completing Grade 8 in year 2012 |
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Volume-5 No.1 - Jan. 2016 |
Volume-4 No.2 - July 2015 |
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| ක්රියාමූලික පර්යේෂණ |
Volume-3 No.2 - July 2014 |
Volume-3 No.1 - Jan. 2014 |
Volume-2 No. 2 July 2013 | Volume-2 No.1 Jan. 2013 |
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