Karuna. “The Classification of Surfaces and the Möbius Strip”. African Diaspora Journal of Mathematics ISSN: 1539-854X, Multidisciplinary UGC CARE GROUP I 27, no. 2 (June 6, 2024): 16–34. Accessed July 4, 2024. https://newjournalzone.in/index.php/ijmfsmr/article/view/241.