Imtiaz, N., F. Hussain, G. Dastagir, and K. M. Aslam. “SOME ECOLOGICAL STUDIES ON LINUM USITATISSIMUM LINN”. Biological Sciences - PJSIR, vol. 47, no. 5, Oct. 2004, pp. 376-9, http://v2.pjsir.org/index.php/biological-sciences/article/view/1553.