Vasim Ahamad, M., Urrahman Siddiqui, M., Masroor, M., & Fatima, U. (2018). An Improved Playfair Encryption Technique Using Fibonacci Series Generated Secret Key. International Journal of Engineering & Technology, 7(4.5), 347-351. https://doi.org/10.14419/ijet.v7i4.5.20104