J. SINGH1, S.S. CHEEMA3 and S.S. SOKHI3, A. V. F. N. I. D. (2002). Alarming epidemic of rice tungro disease in North-West India. Indian Phytopathology, 52(1), 71-74. https://epubs.icar.org.in/index.php/IPPJ/article/view/19457