Nasir, M., M. Idrees, S. S.H. Zaidi, S. A. Chisti, M. Ayub, and L. Aamrao. “TOMATO BUSHY STUNT VIRUS AND TOMATO ADVANCED LINES/CULTIVARS”. Pakistan Journal of Phytopathology, vol. 28, no. 2, Dec. 2016, pp. 283-6, http://www.pjp.pakps.com/index.php/PJP/article/view/308.