1. Biswal BN (1979) A study of correspondence education in India Ph.D. thesis, Baroda, The Maharaja Sayajiro University of Baroda
2. How students use distance teaching materials: an institutional study
3. Government of India (1986) National policy on education (New Delhi, Ministry of Human Resource Development)
4. Jheengut I (1999) Basic English course evaluation Available online at: http://saide.org.za/worldbank/management/benefits/m42amau.html