Getaye, M., Yadav, O.P., Taddesse, A. and Jain, D.V.S. 2015. Effect on Photo-Catalytic Activity of Zinc Oxide Nanoparticles upon Doping with Silver and Sulphur in Degradation Reaction of Malachite Green. Journal of Surface Science and Technology. 31, 1-2 (Jun. 2015), 69–76. DOI:https://doi.org/10.18311/jsst/2015/1704.