nazir, A., M. A. Khan, A. M. Abbasi, N. Khan, and K. Ahmed. “ Beauv Species Based on Palyonological and Anatomical Techniques”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 13, no. 1, Jan. 2014, pp. 178-85, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/1617.