Maths 1
http://www.edupub.gov.lk/Administrator/Sinhala/17/tech%20maths%20P-I%20S/web%20new.pdf
Chemistry 2
http://www.edupub.gov.lk/Administrator/Sinhala/17/tehc%20science%20G-12%20chemi/web.pdf
Microbiology
http://www.edupub.gov.lk/Administrator/Sinhala/17/microbio%20S/web.pdf
Physics 1
http://www.edupub.gov.lk/Administrator/Sinhala/17/tech%20scienc%20P-I%20S/web.pdf
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