APA (7th ed.) Citation

(2010). G. C. E. (Advanced Level) Business Statistics grade 13: Teachers' instructional manual (Implemented from year 2010). National Institute of Education.

Chicago Style (17th ed.) Citation

G. C. E. (Advanced Level) Business Statistics Grade 13: Teachers' Instructional Manual (Implemented from Year 2010). Maharagama: National Institute of Education, 2010.

MLA (9th ed.) Citation

G. C. E. (Advanced Level) Business Statistics Grade 13: Teachers' Instructional Manual (Implemented from Year 2010). National Institute of Education, 2010.

Warning: These citations may not always be 100% accurate.