K. D. Apeyuan, A. O. Nwankiti, O. A. H. Oluma & E. J. Ekefan. Effect of Changes in Sowing Dates on Disease Severity of Roselle (Hibiscus Sabdariffa L) Leaf Spot Caused by Coniella Musaiensis Var Hibisci. CRPBS-V9 2025, 16-26.