Sapra, C. L. (1972). Measurement of educational wastage: A review of methodologies. National Council of Educational Research and Training.
Lua i Stíl Chicago (17ú heag.)Sapra, C. L. Measurement of Educational Wastage: A Review of Methodologies. [New Delhi]: National Council of Educational Research and Training, 1972.
Lua MLA (8ú heag.)Sapra, C. L. Measurement of Educational Wastage: A Review of Methodologies. National Council of Educational Research and Training, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.