Cheema, Akbar Ali, M A Awan, M Y Saleem, and Badar Manzoor Atta. 1999. “?HYBRID VIGOUR IN BASMATI RICE: ?Short Communication”. Biological Sciences - PJSIR 42 (4):202-3. http://v2.pjsir.org/index.php/biological-sciences/article/view/2156.