S. Ramkumar • and P.S. Pushkaran. Symbolic Adoption Behaviour of Participants of Correspondence Course. Indian J Ext Edu [Internet]. 1991 Dec. 31 [cited 2025 Oct. 24];27(3-4):116-7. Available from: https://epubs.icar.org.in/index.php/IJEE/article/view/160581