Research & development statistics 1980-81/

समान संसाधन

• World economic survey:1980-81
  द्वारा: United Nations
  प्रकाशित: (1981)
• India Who's Who 1980-81
• Bibliography of doctoral dissertations 1980-81 social sciences and humanities
  द्वारा: Association of Indian Universities. New Delhi
  प्रकाशित: (1984)
• Detailed Civil Budget estimates for the Year 1980-81
  द्वारा: West Bengal. Finance Department
  प्रकाशित: (1980)
• Detailed Civil Budget estimates for the Year, 1980-81
  द्वारा: West Bengal. Finance Department
  प्रकाशित: (1980)