Hakan Caliskan, Ram Ji Tripathi, Varun Kumar Singh, "Nanofluids in Heat Exchangers: Design and Optimization." In: Fundamentals and Applications of Nanofluids, Elsevier, First Edition (1 July 2026), ISBN 978-0-443-44502-6, page no. 517-548. 28 August 2026 , https://doi.org/10.1016/B978-0-443-44502-6.00012-8 

Hakan Caliskan, Ram Ji Tripathi, Varun Kumar Singh, "Environmental Impact and Safety of Nanofluids." In: Fundamentals and Applications of Nanofluids, Elsevier, First Edition (1 July 2026), ISBN 978-0-443-44502-6, page no. 549-579. 28 August 2026  https://doi.org/10.1016/B978-0-443-44502-6.00006-2 

iHakan Caliskan, Ram Ji Tripathi, Varun Kumar Singh, "Hybrid Nanofluids: Combining Nanoparticles for Enhanced Properties." In: Fundamentals and Applications of Nanofluids, Elsevier, First Edition (1 July 2026), ISBN 978-0-443-44502-6, page no. 595-624. 28 August 2026  https://doi.org/10.1016/B978-0-443-44502-6.00011-6

Hakan Caliskan, Ram Ji Tripathi, Varun Kumar Singh, " Case studies: practical applications of nanofluids in industry." In: Fundamentals and Applications of Nanofluids, Elsevier, First Edition (1 July 2026), ISBN 978-0-443-44502-6, page no. 625-651. 28 August 2026  https://doi.org/10.1016/B978-0-443-44502-6.00014-1 

 Suraj, Devesh Kumar, Santosh Kumar Yadav, Ram Ji Tripathi & Varun Kumar Singh,(2023). Fabrication of Experimental Setup of Solar Distillation System Integrated with Parabolic Collector. Proceedings of the International Conference on Frontiers in Desalination, Energy, Environment and Material Sciences for Sustainable Development, AIJR Book Proceedings, 64-71. https://doi.org/10.21467/proceedings.161.7 

Suraj Singh, Devesh Kumar, Priyankesh Kumar, Santosh Kumar Yadav, & Ram Ji Tripathi (2023). Extraction of Oil and Preparation of Biodiesel using Orange Peel and its Performance and Emission Analysis on CI Engine. Proceedings of the International Conference on Frontiers in Desalination, Energy, Environment and Material Sciences for Sustainable Development.  AIJR Book Proceedings, 209-220. https://doi.org/10.21467/proceedings.161.24E-books chapters