E. A. Elrifai & M. Anis 2023. On Braid Group: More Sharpness for Lower Bound of the Number of Conjugacy Classes in Positive Permutation Braids. Research and Applications Towards Mathematics and Computer Science Vol. 7. (Dec. 2023), 66–72. DOI:https://doi.org/10.9734/bpi/ratmcs/v7/2303G.