1. Microbial deterioration of paintings: a review;Agrawal,1989
2. Study of Biodeterioration of the Ajanta Wall Paintings;Agrawal;Int. Biodeter.,1988
3. Microbiological studies on the conservation of mural paintings in Tumuli;Arai,1984
4. Microbiological studies on Tumuli-like underground environments;Arai;Sci. Conserv.,1985