Singburaudom, N., & Willams, R. (1978). The Relationships between Local Lesion, Local Colonization and Systemic Symptoms of Sorghum Downy Mildew on Sorghum after Inoculation with Conidia. Agriculture and Natural Resources, 12(2), 92–95. retrieved from https://li01.tci-thaijo.org/index.php/anres/article/view/240815