Sarkar, Avijit, Md. Showkat Ali, and Dipankar Biswas. “On Submanifolds of (kappa, Mu) – Contact Metric Manifolds”. Dhaka University Journal of Science 61, no. 1 (May 27, 2013): 93–96. Accessed December 22, 2024. https://banglajol.info/index.php/DUJS/article/view/15103.