- "Introduction to Organic Farming" by Dr. P. Anandhamurthy
- "Principles of Organic Farming" by Dr. P.K. Ghosh
- "Sustainable Agriculture: Principles, Techniques, and Issues" by Raymond P. Poincelot


- "Organic Agriculture: A Global Perspective" by Paul Kristiansen, Acram Taji, and John Reganold
- "Sustainable Agriculture: Definitions, Principles, and Policies" by Jules Pretty
- "Organic Agriculture and Sustainable Rural Development" by Paola Migliorini and Gianluca Brunori


- National Center for Organic Farming (NCOF) reports and publications
- Ministry of Agriculture and Farmers Welfare publications on sustainable agriculture
- Reports and guidelines from agricultural research institutes and organizations like ICAR (Indian Council of Agricultural Research)


- Organic Farming section of the Agriculture Ministry's official website
- National Centre of Organic Farming (NCOF) website
- Agricultural research institutes' websites like Indian Agricultural Research Institute (IARI)
- Online platforms like EduRev, which offer study materials, notes, and resources on organic farming and sustainable agriculture


- Online courses on platforms like EduRev, Coursera, and Udemy that offer modules on organic farming and sustainable agriculture
- Webinars conducted by agricultural experts, organizations, and universities, focusing on relevant topics and principles


- "Organic Farming Magazine" by Organic Farming Association
- "Sustainable Agriculture Reviews" by Eric Lichtfouse and Mireille Navarrete
- "Journal of Sustainable Agriculture" by Taylor & Francis Group

These sources provide comprehensive information and insights into the principles of organic farming and sustainable agriculture. They cover topics such as soil health, crop rotation, pest management, water conservation, and biodiversity conservation. It is essential to refer to a combination of different sources to gain a holistic understanding of the subject.