1. ”Transformation of plain Text with two ciphers”,(Rajani Bala,Swapnika saxena,Sonal beniwal), Volume 3, Issue 5, May 2013.
2. “Implementation of Ceasar Cipher with Rail Fence for Enhancing Data Security”,(Ajit Singh, Aarti Nandal, Swati Malik), Volume 2, Issue 12 , December 2012.
3. “An Extension to Traditional Playfair Cryptographic Method”( Ravindra Babu, Uday Kumar, Vinay Babu, Aditya, Komuraiah), Volume 17, No.5, March 2011.
4. “An Improved Ceasar Cipher Algorithm”,(Ochoche Abraham, GaniyO.Shefiu), Volume 2, Issue-5,1198-1202.
5. "Alpha-Qwerty Cipher: An Extended Vigenere Cipher”( Khalid Imam Rahmani,Neeta Wadhwa, Vaibhv Malhotra), Volume 3, No.3, May, 2012.