Morphology dependent electrical property of chitosan film and modeling by fractal theory C. Raja Mohan, A. Gowrisankar, R. Uthayakumar and K. Jayakumar Eur. Phys. J. Special Topics, 228 1 (2019) 233-243 Published online: 30 May 2019 DOI: 10.1140/epjst/e2019-800113-4