Rao, D. B. (2000). International encyclopaedia of science and technology education: Science education in developing countries. Discovery Publishing House.
শিকাগো স্টাইলে সাইটেশনRao, Digumarti Bhaskara. International Encyclopaedia of Science and Technology Education: Science Education in Developing Countries. New Delhi: Discovery Publishing House, 2000.
এমএলএ সাইটেশনRao, Digumarti Bhaskara. International Encyclopaedia of Science and Technology Education: Science Education in Developing Countries. Discovery Publishing House, 2000.
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