et. al., T.Balachander ,. “Efficient Spectrum Sharing by Cognitive User Section Through Clustering for D2D Communication”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 7 (April 16, 2021): 2501–2505. Accessed May 1, 2024. https://turcomat.org/index.php/turkbilmat/article/view/3578.