M. I. S. A. K. Y. Zafar, Shahid Mansoor, Arsalan Yusuf, Zahid Mukhtar, “Expression of a full length Arabidopsis vacuolar H+-pyrophosphatase (AVP1) gene in tobacco (Nicotiana tabbacum) to increase tolerance to drought and salt stresses”, jp, vol. 1, no. 6, Nov. 2009.