K Sreedharan Nair & N. Vedamani Manual,Guide. (1975). A Study Of The Concept Of Standards In English Through An Analysis Of The Test Books Prepared For Secondary School Pupils In Kerala Since 1952. Dept of Education,University of Kerala.

K Sreedharan Nair and N. Vedamani Manual,Guide. A Study Of The Concept Of Standards In English Through An Analysis Of The Test Books Prepared For Secondary School Pupils In Kerala Since 1952. Thiruvananthapuram: Dept of Education,University of Kerala, 1975.

K Sreedharan Nair and N. Vedamani Manual,Guide. A Study Of The Concept Of Standards In English Through An Analysis Of The Test Books Prepared For Secondary School Pupils In Kerala Since 1952. Dept of Education,University of Kerala, 1975.