et. al., Sangeetha Mariammal,. “An Additive Rotational Perturbation Technique for Privacy Preserving Data Mining”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 12, no. 9, Apr. 2021, pp. 3444– 3450, https://www.turcomat.org/index.php/turkbilmat/article/view/4002.