Grade 12 Economics Teachers' Guide Sinhala Medium New Syllabus PDF Download
Grade 12 Economics Teachers' Guide in Sinhala Medium New Syllabus PDF Free Download. Grade 12 School Economics Teachers Guide. 12 ශ්රේණිය ආර්ථික විද්යාව ගුරු මාර්ගෝපදේශය Guru Margopadeshaya. 12 Wasara Arthika Vidyawa Guruathpoth. Grade 12 Teachers' Guide Sinhala Medium. Sri Lanka Government School Grade 12 Teacher's Guide PDF Download in Sinhala Medium.