1. 1. National Institute for Occupational Safety and Health, 1998. Occupational Noise Exposure, Revised Criteria 1998. DHHS, Cincinnati, OH, pp. 1e105. www.cdc. gov/niosh/docs/98-126/
   2. Pankaj Kumar Sa , Rameswar Baliarsingh, Banshidhar Majhi, “On the Development of Impulsive Noise Removal Schemes”, M.Tech. Thesis , NIT ,Rourkela, 2006
   3. Anamika Maurya, Rajinder Tiwari, “A Novel Method of Image Restoration by using Different Types of Filtering Techniques”, IJESIT, Volume 3, Issue 4, July 2014.
   4. Rakesh M.R, Ajeya B, Mohan A.R ,” Hybrid Median Filter for Impulse Noise Removal of an Image in Image Restoration” , IJAREEIE , Vol. 2, Issue 10, October 2013.
   5. Subhrajeet Mohapatra , Rameswar Baliarsingh, Banshidhar Majhi, “Development of Impulsive Noise Detection Schemes for Selective Filtering in Images”, NIT ,Rourkela ,2008
   6. Vikas Gupta , Vijayshri Chaurasia, Madhu Shandilya, “Random-valued impulse noise removal using adaptive dual threshold median filter”, J. Vis. Commun. Image R. 26 (2015) 296–304.
   7. Hussain Dawood, Hassan Dawood, Ping Guo, “Removal of high-intensity impulse noise by Weber‟s law Noise Identifier”, Pattern Recognition Letters 49 (2014) 121–130
   8. Xianquan Zhang, Feng Ding, Zhenjun Tang, Chunqiang Yu, “Salt and pepper noise removal with image inpainting”, Int. J. Electron. Commun. (AEÜ) 69 (2015) 307–313.
   9. Xiaotian Wang, Shanshan Shen , Guangming Shi , Yuannan Xu , Peiyu Zhang, “Iterative non-local means filter for salt and pepper noise removal”, J. Vis. Commun. Image R. 38 (2016) 440–450. 
   10. Easwara , Satish Babu, “Removal of High Density Impulse Noise Using Cloud Model Filter”, IOSR-JVSP, e-ISSN: 2319 – 4200, p-ISSN No. : 2319 – 4197 Volume 1, Issue 6 (Mar. – Apr. 2013), PP 37-41
   11. Iyad F. Jafar, Rami A. AlNa‟mneh, and Khalid A. Darabkh, “Efficient Improvements on the BDND Filtering Algorithm for the Removal of High-Density Impulse Noise” , IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 22, NO. 3, MARCH 2013
   12. Isma Irum, Muhammad Sharif, Mussarat Yasmin, Mudassar Raza, and Faisal Azam , “A Noise Adaptive Approach to Impulse Noise Detection and Reduction” , Nepal Journal of Science and Technology Vol. 15, No.1 (2014) 67-76.