P. K. Santhosh, N. M. Madhavan Namboothiri, and P. N. Jayaprasad. “On 2 Generated C-Spaces”. Malaya Journal of Matematik 8, no. 03 (July 1, 2020): 852–855. Accessed July 16, 2024. https://www.malayajournal.org/index.php/mjm/article/view/1513.