Vijay Sharma, Nishu, and Anshu Malhotra. “An Encryption and Decryption of Phonetic Alphabets Using Signed Graphs”. The Scientific Temper 15, no. spl-2 (November 30, 2024): 212–217. Accessed December 3, 2025. https://scientifictemper.com/index.php/tst/article/view/1766.