- "Tunnel Engineering Handbook" by John O. Bickel and T. R. Kuesel
- "Introduction to Tunnel Construction" by David N. Chapman and Nicole Metje
- "Tunnel Engineering: A Simplified Approach" by V. Vazirani and S. Ratay
- "Rock Mechanics for Underground Mining" by B.H.G. Brady and E.T. Brown


- International Journal of Rock Mechanics and Mining Sciences: This journal publishes research papers related to tunnel engineering, rock mechanics, and underground structures.
- Tunneling and Underground Space Technology: This journal covers various aspects of tunnel engineering, including design, construction, and maintenance.
- Tunnelling and Underground Space Technology incorporating Trenchless Technology Research: This journal focuses on the latest developments and research in tunneling and trenchless technology.


- EduRev: EduRev offers a variety of study materials, notes, and lectures on tunnel engineering. They provide comprehensive content that covers the theoretical and practical aspects of tunnel engineering.
- National Programme on Technology Enhanced Learning (NPTEL): NPTEL offers online courses on tunnel engineering, which include video lectures, lecture notes, and assignments. These courses are taught by renowned professors from top Indian institutes.
- Geotechnical Engineering: This online course by MIT OpenCourseWare covers topics related to geotechnical engineering, which includes tunneling and underground structures.


- International Tunneling and Underground Space Association (ITA): ITA organizes conferences, workshops, and seminars related to tunnel engineering. They also publish technical reports and guidelines for tunnel design, construction, and operation.
- American Society of Civil Engineers (ASCE): ASCE holds conferences and publishes journals and technical papers on various civil engineering disciplines, including tunnel engineering.


- Case Studies in Tunnel Construction: This book by Bhawani Singh provides detailed case studies of tunnel projects from around the world, highlighting design challenges, construction methods, and lessons learned.
- Project Reports and Technical Documents: Accessing project reports and technical documents of real tunnel projects can provide valuable insights into the practical aspects of tunnel engineering. These reports can often be found through online databases or by contacting relevant organizations and agencies.

Remember, it's important to regularly refer to textbooks, research papers, and online resources to gain a comprehensive understanding of tunnel engineering. Supplement your studies with practical examples and case studies to enhance your knowledge and problem-solving skills in this field.