- Author: Vasantha Kandasamy W. B., Smarandache Florentin, Ilanthenral K
- Language: English
- Year: 2007
- Author: Vasantha Kandasamy W. B., Amal K., Smarandache Florentin
- Language: English
- Year: 2008
- Author: Vasantha Kandasamy W. B., Smarandache Florentin, Ilanthenral K
- Language: English
- Year: 2007