Philip, J. (2000). Advances in phonon physics: Proceedings of the third national conference on phonon physics,Cochin University of Science and Technology, India: January, 20-23, 1993. Educational Publishers.

Philip, J. Advances in Phonon Physics: Proceedings of the Third National Conference on Phonon Physics,Cochin University of Science and Technology, India: January, 20-23, 1993. Kochi: Educational Publishers, 2000.

Philip, J. Advances in Phonon Physics: Proceedings of the Third National Conference on Phonon Physics,Cochin University of Science and Technology, India: January, 20-23, 1993. Educational Publishers, 2000.