Gopalan, M. A., Vidhyalakshmi, S. and Kavitha, A. (2014) “Special Dio- Quadruples with Property D(2)”, The International Journal of Science & Technoledge, 2(5). Available at: http://internationaljournalcorner.com/index.php/theijst/article/view/128141 (Accessed: 7 July 2024).