Kaushal, Nimisha, et al. “REVERSE TRANSCRIPTASE POLYMERASE CHAIN REACTION (RT-PCR) BASED DETECTION OF PVSO AND PVSA STRAINS BY USING DEGENERATE PRIMERS”. Potato Journal, vol. 34, no. 1 - 2, Sept. 2013, https://epubs.icar.org.in/index.php/PotatoJ/article/view/33092.