Grade 12 Business Studies Teachers' Guide Sinhala Medium New Syllabus PDF Download
Grade 12 Business Studies Teachers' Guide in Sinhala Medium New Syllabus PDF Free Download. Grade 12 School Business Studies Teachers Guide. 12 ශ්රේණිය ව්යාපාර අධ්යයනය ගුරු මාර්ගෝපදේශය Guru Margopadeshaya. 12 Wasara Vyapara Adyayanaya Guruathpoth. Grade 12 Teachers' Guide Sinhala Medium. Sri Lanka Government School Grade 12 Teacher's Guide PDF Download in Sinhala Medium.