Ashwaq A., Zahra N. Al Hattab, Wajida K. Al Qaudhy, Ekhlas Al Kaaby, Sammer F. Al Tahhan, & Jenan A. Al Ani. (2015). The effect of PEG on callus growth of Tomato plants Lycopersicon escolentum mill . Journal of Madenat Alelem University College, 7(1), 11-19. Retrieved from http://116.203.176.164/index.php/JMAUC/article/view/156